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1.
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2.
  • Östensson, Karin (författare)
  • Från manligt till kvinnligt
  • 2010
  • Ingår i: Veterinär - yrke i förvandling. - 9789163374425 ; , s. 83-110
  • Bokkapitel (populärvet., debatt m.m.)
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3.
  • Östensson, Karin (författare)
  • Sveriges Veterinärförbund 150 år
  • 2010
  • Ingår i: Veterinär - yrke i förvandling. - 9789163374425 ; , s. 8-67
  • Bokkapitel (populärvet., debatt m.m.)
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4.
  • Essner, Ann, et al. (författare)
  • Psychometric evaluation of the canine brief pain inventory in a Swedish sample of dogs with pain related to osteoarthritis
  • 2017
  • Ingår i: Acta Veterinaria Scandinavica. - : Springer Science and Business Media LLC. - 0044-605X .- 1751-0147. ; 59:1
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: To evaluate intervention, implement evidence-based practice and enhance the welfare of dogs with naturally occurring osteoarthritis (OA), access to valid, reliable and clinically relevant outcome measures is crucial for researchers, veterinarians and rehabilitation practitioners. The objectives of the present study were to translate and evaluate psychometric properties, in terms of internal consistency and construct validity, of the owner-reported measure canine brief pain inventory (CBPI) in a Swedish sample of dogs with pain related to OA.RESULTS: Twenty-one owners of clinically sound dogs and 58 owners of dogs with pain related to OA were included in this observational and cross-sectional study. After being translated according to the guidelines for patient-reported outcome measures, the CBPI was completed by the canine owners. Construct validity was assessed by confirmatory factor analysis, by repeating the principal component analysis and by assessing for differences between clinically sound dogs and dogs with pain related to OA. Internal consistency was estimated by Cronbach's α. Confirmatory factor analysis was not able to confirm the factor-structure models tested in our sample. Principal component analysis showed a two-component structure, pain severity and pain interference of function. Two components accounted for 76.8% of the total variance, suggesting an acceptable fit of a two-component structure. The ratings from the clinically sound dogs differed from OA dogs and showed significantly lower CBPI total sum. Cronbach's α was 0.94 for the total CBPI, 0.91 for the pain severity and 0.91 for the pain interference of function.CONCLUSIONS: The results indicate that the translated version of the CBPI is valid for use in the Swedish language. The findings suggest satisfying psychometric properties in terms of high internal consistencies and ability to discriminate clinically sound dogs from OA dogs. However, based on the confirmatory factor analysis, the original factor structure in the CBPI is not ideally suited to measure pain related to OA in our sample and the hypothesis of the presented two-factor structure was rejected. Further research needs to be conducted to determine whether the original psychometric results from CBPI can be replicated across different target groups and particularly with larger sample size.
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6.
  • Widgren, Stefan, et al. (författare)
  • Spatio-temporal modelling of verotoxigenic Escherichia coli O157 in cattle in Sweden: exploring options for control
  • 2018
  • Ingår i: Veterinary Research. - : Springer Science and Business Media LLC. - 0928-4249 .- 1297-9716. ; 49
  • Tidskriftsartikel (refereegranskat)abstract
    • A spatial data-driven stochastic model was developed to explore the spread of verotoxigenic Escherichia coli O157 (VTEC O157) by livestock movements and local transmission among neighbouring holdings in the complete Swedish cattle population. Livestock data were incorporated to model the time-varying contact network between holdings and population demographics. Furthermore, meteorological data with the average temperature at the geographical location of each holding was used to incorporate season. The model was fitted against observed data and extensive numerical experiments were conducted to investigate the model's response to control strategies aimed at reducing shedding and susceptibility, as well as interventions informed by network measures. The results showed that including local spread and season improved agreement with prevalence studies. Also, control strategies aimed at reducing the average shedding rate were more efficient in reducing the VTEC O157 prevalence than strategies based on network measures. The methodology presented in this study could provide a basis for developing disease surveillance on regional and national scales, where observed data are combined with readily available high-resolution data in simulations to get an overview of potential disease spread in unobserved regions.
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7.
  • Berg, Lotta, et al. (författare)
  • Scientific Opinion on the assessment of studies on the use of carbon dioxide for stunning rabbits
  • 2015
  • Ingår i: EFSA Journal. - : Wiley. - 1831-4732. ; 13
  • Tidskriftsartikel (refereegranskat)abstract
    • The EFSA Panel on Animal Health and Welfare (AHAW Panel) was asked by the European Commission to deliver a scientific opinion on two studies concerned with the use of carbon dioxide for stunning rabbits. The European Commission had received from the Spanish authorities a report of a study entitled ‘Carbon dioxide stunning of rabbits' and another study entitled ‘Stunning of rabbits with carbon dioxide', provided as a complement to the first study. The latter was undertaken in a commercial abattoir where a commercial carbon dioxide stunner was installed. The results of electrocardiography and animal-based measures (nasal discomfort and vocalisation) produced in the experimental slaughterhouse study clearly indicated that the rabbits were subjected to pain and suffering prior to the loss of consciousness. The data presented do not describe stable, controlled or repeatable experimental conditions. The statistical tests used to analyse the data were not appropriate. The study in the commercial abattoir was not based on sound scientific conclusions resulting from the experimental slaughterhouse study. For all of these reasons, the submitted studies did not meet the minimum criteria for eligibility in the EFSA guidance on the assessment criteria for studies evaluating the effectiveness of stunning interventions. Therefore, they were not further assessed.
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8.
  • Berg, Lotta, et al. (författare)
  • Scientific Opinion on the scientific assessment of studies on electrical parameters for stunning of small ruminants (ovine and caprine species)
  • 2015
  • Ingår i: EFSA Journal. - : Wiley. - 1831-4732. ; 13
  • Tidskriftsartikel (refereegranskat)abstract
    • The EFSA Panel on Animal Health and Welfare (AHAW Panel) was asked by the European Commission to deliver a scientific opinion on three studies evaluating electrical parameters for the stunning of lambs and kid goats. The Commission received the studies from the Spanish authorities. One study was in the form of a manuscript entitled ‘Electrical stunning effectiveness with current levels lower than 1 A in lambs and kid goats'. The second study consisted of a summary in English entitled ‘Effect of the electrical stunning with inferior intensities of current to 1 Ampere on the carcass quality in Pascuales lambs', and the third study consisted of a summary in English entitled ‘Effect of electrical stunning with inferior intensities to 1 Ampere on the induction to the unconsciousness in lambs'. Reported outcomes for different animal categories were inconsistent and contradictory, indicating a need to validate if the stunning equipment delivered the intended current levels to the animals. The head-only stunning and slaughter intervention failed to achieve and/or maintain unconsciousness during bleeding and the head-to-body stunning and slaughter intervention failed to achieve cardiac ventricular fibrillation in all of the animals, as evidenced by the presence of corneal reflex and rhythmic breathing. No evidence of absence of pain and suffering is presented in the studies. The submitted studies are not considered adequate for a full welfare assessment of the alternative stunning method because they do not fulfil the eligibility criteria and the reporting quality criteria defined in the EFSA guidance on the assessment criteria for studies evaluating the effectiveness of stunning interventions or the EFSA opinion on monitoring welfare at slaughter of small ruminants.
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9.
  • Båge, Renee (författare)
  • Freemartinism in cattle
  • 2012
  • Ingår i: Ruminants: Anatomy, behavior and diseases. - 9781620810644 ; , s. 99-120
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • Freemartinism is one of the most commonly found intersex conditions in cattle, although it may also occur in small ruminants. The freemartin phenotype appears in a dizygotic twin pregnancy where one twin is a male and the other is a female. Due to precocious anastomoses between the placental vascular systems of the two fetuses, masculinising molecules reach the female twin and disrupt the normal sexual differentiation, whilst in the male the effects of this association are usually minimal. In cattle, this condition is observed in 90 to 97% of twin pregnancies. A freemartin is, by definition, a genetically female fetus masculinised in the presence of a male co-twin, giving rise to a sterile heifer. Genital tract defects with varying severity can be observed in freemartin animals, which often present suppression and disorganization of the ovary, originating a rudimentary or a testis-like gonad depleted of germ cells. The uterine horns may be hypoplastic or instead may be reduced to a cord-like structure suspended in the broad ligament. Anatomic continuity between the uterus and the vagina is frequently absent, and the existence of rudimentary vesicular glands is typical. The external genitalia commonly presents enlarged clitoris, small vulva and a prominent, male-like tuft of hair. As a rule, heifers born twin to a bull have to be considered sterile and should be identified as early as possible to cull them from replacement stock. Despite its limitations, freemartinism is currently diagnosed by physical examination, as karyotyping or blood typing is often considered an unnecessary expense. In cattle, twinning trend has a genetic background that has been associated to hormonal regulation in favor of double ovulations. However, the genetic determinant on the basis of twinning seems to have small importance when compared to environmental or management-associated factors, particularly in dairy cows. In fact, in dairy animals, in particular in high milk producing cows, it has long been proven that the increase of twin calvings occurs due to the hormonal and metabolic disturbances in the energy balance early in the post-partum period. With increased incidence of twin births in cow it is reasonably expectable a small increase in the occurrence of freemartins at the farm levels. In this paper it is the intent to describe the gross and histopathological findings of freemartinism in cattle, using data gathered from a study at an abattoir (17 cases) and from 3 cases diagnosed in living animals, supported by a review of the pathophysiology of the process, and to discuss the available methods for identification of freemartin animals at farm level.
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11.
  • Ferrari, Desiree, et al. (författare)
  • Concentration of carprofen in the milk of lactating bitches after cesarean section and during inflammatory conditions
  • 2022
  • Ingår i: Theriogenology. - : Elsevier. - 0093-691X .- 1879-3231. ; 181, s. 59-68
  • Tidskriftsartikel (refereegranskat)abstract
    • Pain treatment of lactating bitches is a clinically relevant, but complicated issue. Published scientific studies regarding the excretion of drugs in canine milk are scarce. When considering the risk of side effects in their offspring, lactating bitches have traditionally received very restricted analgesic and anti-inflammatory therapy. Our aim was to quantify the concentrations of carprofen in milk from lactating bitches and relate those to potential risks for the puppies. A second aim was to evaluate the impact mastitis may have on the concentration of carprofen in milk. A population of 100 bitches was enrolled in the study, among which 88 were bitches treated with carprofen after cesarean section (Group CS), eight were bitches with painful inflammatory conditions (Group I) and four were bitches with mastitis (Group M). The patients enrolled in the study received carprofen 4 mg/kg sc at day 1 followed by 2 mg/kg po every 12 h for the following 2-5 days. Owners were instructed to collect milk once a day for five days. The concentration of carprofen in the milk was quantified with ultra-performance liquid chromatography-tandem mass spectrometry. The data obtained were statistically analyzed as repeated-measures data with a mixed-model approach. Data were used to calculate the theoretical maximum total daily intake of carprofen by the puppies in order to perform a computerized simulation of the plasma concentration of carprofen in the puppies. Follow-up telephone interviews to check the status of the enrolled bitches and their litters occurred at one week and three-six months after treatment with car-profen. The major finding of the study was that the concentration of carprofen in the milk was <700 ng/ mL from bitches undergoing CS or suffering painful conditions other than mastitis. In comparison, administration of 2 mg/kg of carprofen sc or po to adult dogs, results in mean maximal plasma con-centrations of 19480 +/- 5420 ng/mL (mean +/- SD). Moreover, data suggests that inflammation of the mammary gland results in a higher concentration of carprofen in milk (up to 1300 ng/mL). In the computerized simulation, the plasma concentrations of carprofen in puppies in group CS and in group I are one tenth of the concentration in adult dogs receiving carprofen at standard doses. Considering the low excretion into milk, carprofen provides an analgesic alternative to lactating bitches without mastitis.(c) 2022 Published by Elsevier Inc.
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12.
  • Jitpean, Supranee, et al. (författare)
  • Increased concentrations of Serum amyloid A in dogs with sepsis caused by pyometra
  • 2014
  • Ingår i: BMC Veterinary Research. - : Springer Science and Business Media LLC. - 1746-6148. ; 10
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Sepsis is a serious and potentially life-threatening condition and early diagnosis and appropriate treatment is crucial for survival. Pyometra is one of the most common diseases in intact female dogs. The disease often leads to sepsis (systemic inflammatory response syndrome, SIRS, caused by infection). Diagnostic markers for detecting sepsis are gaining increasing interest in veterinary medicine. Acute phase proteins (APPs) such as C-reactive protein (CRP) are useful for detecting systemic inflammation in dogs. Serum amyloid A (SAA) is another major APP in dogs that is not yet as widely used. Albumin is regarded as a negative APP and has earlier been evaluated for prediction of prognosis in septic dogs. The aim of the present study was to determine SAA, CRP and albumin concentrations in dogs with sepsis and pyometra and to evaluate whether these inflammatory markers are associated with length of postoperative hospitalization.Results: Thirty-one surgically treated bitches with pyometra were included, whereof 23 septic (SIRS-positive) and eight non-septic (SIRS-negative). Albumin concentrations were analyzed by routine automated methods. SAA and CRP analyses were performed with previously validated commercially available assays (ELISA and immunoturbidimetric). Mean (+/- SE) serum concentrations of SAA were significantly higher in septic (130.8 +/- 8.0 mg/L) compared to non-septic bitches (88.5 +/- 12.5 mg/L). Using a cut-off value for SAA of 109.07 mg/L (n = 31 bitches), the sensitivity and specificity for detecting sepsis was 74% and 50%, respectively. Serum albumin concentrations were not significantly different in septic compared to non-septic bitches (mean +/- SE, 25 +/- 1 g/L and 26 +/- 1 g/L, respectively). CRP concentrations were also not significantly different in septic (mean +/- SE 225.6 +/- 16.0 mg/L) compared to non-septic bitches (mean +/- SE, 176.0 +/- 27.1 mg/L). None of these inflammatory markers were associated with the outcome as measured by length of hospitalization.Conclusions: SAA concentrations were increased in dogs with sepsis induced by pyometra and may be useful as an adjunctive diagnostic marker for sepsis. To evaluate the full potential of SAA as a marker for sepsis also in other diseases, further studies are warranted.
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13.
  • Johansson Wensman, Jonas, et al. (författare)
  • Markers of Borna disease virus infection in cats with staggering disease
  • 2012
  • Ingår i: Journal of Feline Medicine and Surgery. - 1098-612X .- 1532-2750. ; 14, s. 573-582
  • Tidskriftsartikel (refereegranskat)abstract
    • Borna disease virus (BDV) is a RNA-virus causing neurological disorders in a wide range of mammals. In cats, BDV infection may cause staggering disease. Presently, staggering disease is a tentative clinical diagnosis, only confirmed at necropsy. In this study, cats with staggering disease were investigated to study markers of BDV infection aiming for improvement of current diagnostics. Nineteen cats fulfilled the inclusion criteria based on neurological signs and pathological findings. In 17/19 cats, BDV infection markers (BDV-specific antibodies and/or BDV-RNA) were found, and antibodies in serum (13/16, 81%) were the most common marker. BDV-RNA was found in 11/19 cats (58%). In a reference population without neurological signs, 4/25 cats were seropositive (16%). The clinical history and neurological signs in combination with presence of BDV infection markers, where serology and rRT-PCR on blood can be helpful tools, improve the diagnostic accuracy in the living cat.
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14.
  • Ley, Charles, et al. (författare)
  • Osteochondral lesions in distal tarsal joints of Icelandic horses reveal strong associations between hyaline and calcified cartilage abnormalities.
  • 2014
  • Ingår i: eCells and Materials Journal. - 1473-2262. ; 27, s. 213-236
  • Tidskriftsartikel (refereegranskat)abstract
    • Osteochondral lesions in the joints of the distal tarsal region of young Icelandic horses provide a natural model for the early stages of osteoarthritis (OA) in low-motion joints. We describe and characterise mineralised and non-mineralised osteochondral lesions in left distal tarsal region joint specimens from twenty-two 30 ±1 month-old Icelandic horses. Combinations of confocal scanning light microscopy, backscattered electron scanning electron microscopy (including, importantly, iodine staining) and three-dimensional microcomputed tomography were used on specimens obtained with guidance from clinical imaging. Lesion-types were described and classified into groups according to morphological features. Their locations in the hyaline articular cartilage (HAC), articular calcified cartilage (ACC), subchondral bone (SCB) and the joint margin tissues were identified and their frequency in the joints recorded. Associations and correlations between lesion-types were investigated for centrodistal joints only. In centrodistal joints the lesion-types HAC chondrocyte loss, HAC fibrillation, HAC central chondrocyte clusters, ACC arrest and ACC advance had significant associations and strong correlations. These lesion-types had moderate to high frequency in centrodistal joints but low frequencies in tarsometatarsal and talocalcaneal-centroquartal joints. Joint margin lesion-types had no significant associations with other lesion-types in the centrodistal joints but high frequency in both the centrodistal and tarsometatarsal joints. The frequency of SCB lesion-types in all joints was low. Hypermineralised infill phase lesion-types were detected. Our results emphasise close associations between HAC and ACC lesions in equine centrodistal joints and the importance of ACC lesions in the development of OA in low-motion compression-loaded equine joints.
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15.
  • Ström Hallenberg, Gunilla, et al. (författare)
  • Antimicrobials in small-scale urban pig farming in a lower middle-income country - arbitrary use and high resistance levels
  • 2018
  • Ingår i: Antimicrobial Resistance and Infection Control. - : Springer Science and Business Media LLC. - 2047-2994. ; 7:1
  • Tidskriftsartikel (refereegranskat)abstract
    • © 2018 The Author(s). Background: Administration of antimicrobials to food-producing animals is regarded as a major contributor to the overall emergence of resistance in bacteria worldwide. However, few data are available on global antimicrobial use and resistance (AMR) in livestock, especially from low- and middle-income countries. Methods: We conducted a structured survey of 91 small-scale pig farms in the urban and peri-urban areas of Phnom Penh, Cambodia, to assess the farmers' knowledge, attitudes and practices related to antimicrobial use in their pig production. Commensal Escherichia coli was isolated from three healthy pigs from each farm (n = 261) and susceptibility testing was performed against 14 antimicrobials, using broth microdilution. Univariable logistic regression and generalized linear mixed models were used to investigate potential associations between farm characteristics, management factors and resistance to different types of antimicrobials. Results: We found a widespread and arbitrary use of antimicrobials, often based on the farmer's own judgment. Around 66% of the farmers reported frequently self-adjusting treatment duration and dosage, and 45% had not heard about the term 'antimicrobial resistance'. The antimicrobials most commonly mentioned or kept by the farmers were amoxicillin, tylosin, gentamicin and colistin. Around 37% used a feed concentrate that contained antimicrobials, while antimicrobials for humans were used as a last-line treatment by 10% of the farmers. Commensal E. coli exhibited high prevalence of resistance to several antimicrobials considered to be of critical importance for human medicine, including ampicillin, ciprofloxacin and colistin, and multidrug-resistance was found in 79% of the samples. Higher prevalence of resistance was observed on farms that administered prophylactic antimicrobials and on farms that treated the entire group or herd in the event of disease. Conclusion: The widespread and arbitrary use of antimicrobials in pig farming in Cambodia is highly worrisome. Overall, farmers had a low awareness of the risks and consequences related to antimicrobial use and AMR. The results presented in this study confirm the hypothesis that non-rational use of antimicrobials results in higher prevalence of AMR and highlight the need for professional animal health systems that involve medically rational use of antimicrobials in emerging economies such as Cambodia.
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16.
  • Windahl, Ulrika, et al. (författare)
  • Carriage of methicillin-resistant Staphylococcus pseudintermedius in dogs–a longitudinal study
  • 2012
  • Ingår i: BMC Veterinary Research. - : Springer Science and Business Media LLC. - 1746-6148. ; 8
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Methicillin-resistant S. pseudintermedius strains (MRSP) are reported with increasing frequency in bacterial cultures from dogs. The objectives of this study were to determine whether MRSP could be found in dogs several months after a clinically apparent infection and whether the length of carriage varied depending on systemic antimicrobial treatment, diagnosis at time of the first positive MRSP culture and the presence of skin disease or wounds. Thirty-one dogs previously diagnosed with a clinical infection were sampled repeatedly for a minimum of eight months or, with the exception of two dogs, until two consecutive negative results were obtained. Five specified locations were sampled, and the results were evaluated to determine future recommendations concerning sample strategies when screening for MRSP carriage. Information was collected from medical records and questionnaires to evaluate factors that may influence length of carriage.Results: The overall median length of MRSP carriage was 11 months (48 weeks). The presence of wounds and signs of dermatitis did not influence length of carriage. Systemic treatment for three weeks or longer with antimicrobial agents to which the bacterium was resistant was associated with prolonged carriage compared to dogs treated for a shorter period of time. Three of five dogs treated with an antimicrobial to which their MRSP-isolates were susceptible (tetracycline) were found to still be MRSP-positive when sampled after the end of treatment. Wound samples had the highest positive MRSP yield (81%) for the positive sample sites, compared to less than 70% for each of the other four sample sites. Cultures from the nostrils were less likely to detect MRSP carriage relative to the pharynx, perineum, wounds and the corner of the mouth.Conclusions: Dogs can carry MRSP for more than a year after a clinically apparent infection. Systemic antimicrobial treatment of infections with antimicrobial agents to which the MRSP-bacteria are resistant should be avoided when possible in dogs with possible or confirmed MRSP carriage or infection, since it may prolong time of MRSP carriage. Simultaneous sampling of pharynx, perineum, and the corner of the mouth as well as wounds when present is recommended when screening for MRSP. Cultures from nostrils were shown to be less likely to detect MRSP carriage.
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17.
  • Hallberg, Ida, et al. (författare)
  • Perfluorononanoic acid (PFNA) alters lipid accumulation in bovine blastocysts after oocyte exposure during in vitro maturation
  • 2019
  • Ingår i: Reproductive Toxicology. - : Elsevier BV. - 0890-6238 .- 1873-1708. ; 84, s. 1-8
  • Tidskriftsartikel (refereegranskat)abstract
    • Perfluorononanoic acid (PFNA) is one of the perfluoroalkyl acids present in human tissues. In this study, effects on early embryo development after PFNA exposure were investigated using the bovine in vitro production system. Oocytes were exposed to PFNA during maturation in vitro (10 μg mL-1 and 0.1 μg mL-1), and then fertilized and cultured in parallel with control groups. Developmental parameters (cleavage, blastocyst formation) were followed and embryo quality evaluated (stage, grade). Embryos developed after exposure to 0.1 μg mL-1 were stained to distinguish nuclei, active mitochondria and neutral lipids. 10 μg mL-1 of PFNA had a severe negative effect on blastocyst formation (OR: 0.27 p < 0.05), an effect not observed at 0.1 μg mL-1. However, lipid droplet distribution was significantly altered in embryos exposed to 0.1 μg mL-1, suggesting a disturbance of lipid metabolism after exposure to sublethal levels of PFNA during oocyte maturation in vitro.
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18.
  • Sharif, Hanan, et al. (författare)
  • A monoclonal antibody-based sandwich ELISA for measuring canine Thymidine kinase 1 protein and its role as biomarker in canine lymphoma
  • 2023
  • Ingår i: Frontiers in Veterinary Science. - : Frontiers Media SA. - 2297-1769. ; 10
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Dogs play an important role in society, which increased during the covid epidemics. This has led to a much higher workload for the veterinarians. Therefore, there is a need for efficient diagnostic tools to identify risk of malignant diseases. Here the development of a new test that can solve some of these problems is presented. It is based on serum Thymidine Kinase 1 (TK1), which is a biomarker for cell proliferation and cell lysis.Methods: Anti-TK1 monoclonal antibodies were produced against two different epitopes, the active site of the TK1 protein and the C-terminal region of canine TK1. The antibodies were developed with hybridoma technology and validated using dot blot, Quartz Crystal Microbalance (QCM) technology, western blots, immunoprecipitation (IP), and enzyme-linked immunosorbent assay (ELISA). Clinical evaluation of Canine TK1 ELISA was done by using sera from 131 healthy dogs and 93 dogs with lymphoma. The two selected Anti-TK1 monoclonal antibodies have Kd values in the range of 10(-9) M and further analysis with dot and western blots confirmed the high affinity binding of these antibodies. A sandwich Canine TK1 ELISA was developed using the anti-TK1 antibodies, and TK1 concentrations in serum samples were determined using dog recombinant TK1 as a standard.Results: Serum TK1 protein levels were significantly higher in dogs with lymphoma compared to those in healthy dogs (p < 0.0001). Receiver operating curve analysis showed that the canine TK1-ELISA obtain a sensitivity of 0.80, at a specificity of 0.95. Moreover, the Canine TK1 ELISA has a positive predictive value (PPV) of 97%, and the negative predictive value (NPV) of 83%, reflecting the proportion of test results that are truly positive and negative. Furthermore, Canine TK1 ELISA had significantly higher capacity to differentiate dogs with T-cell lymphoma from those with B-cell lymphoma compared to earlier used TK1 activity assays.Discussion: These results demonstrate that the Canine TK1 ELISA can serve as an efficient tool in the diagnosis and management of dogs with lymphomas.
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19.
  • Sjölund, Marie (författare)
  • Assigning defined daily doses animal: a European multi-country experience for antimicrobial products authorized for usage in pigs
  • 2015
  • Ingår i: Journal of Antimicrobial Chemotherapy. - : Oxford University Press (OUP). - 0305-7453 .- 1460-2091. ; 70, s. 294-302
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To establish a consensus defined daily dose animal (DDDA) for each active substance (AS) and administration route for porcine veterinary antimicrobial products authorized in four European countries, thus allowing cross-country quantification and comparison of antimicrobial usage data. METHODS: All veterinary antimicrobial products authorized for porcine use in Belgium, France, Germany and Sweden were listed for each administration route. First, separate DDDAs for each product were defined based on the recommended dosing for the main indication. Second, a consensus DDDA was established by taking the mean of the DDDAs for each product within a certain category of AS plus administration route. RESULTS: One-hundred-and-fifty-nine, 240, 281 and 50 antimicrobial products were licensed in Belgium, France, Germany and Sweden, respectively, in February 2013. Large variations were observed for dosage and treatment duration recommendations between products and between countries for the same ASs. Only 6.8% of feed/water and 29.4% of parenteral AS groups had the same recommended dosage in the four countries. CONCLUSIONS: This study presents a consensus DDDA list for use in the quantification and comparison of antimicrobial consumption. Four major recommendations have been formulated: (i) urgent need for harmonization of authorization and recommended summary of product characteristics (SPC) dosages; (ii) expand the developed preliminary DDDA list to include all authorized veterinary medicinal products in all EU member states and for all (food-producing) animal species; (iii) improved accessibility of country-specific SPC data would be preferable; and (iv) statement of the 'long-acting' duration of a product in the SPC.
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20.
  • Malaluang, Pongpreecha, et al. (författare)
  • Antimicrobial Resistance in Equine Reproduction
  • 2021
  • Ingår i: Animals. - : MDPI. - 2076-2615. ; 11:11
  • Forskningsöversikt (refereegranskat)abstract
    • Simple SummaryBacteria can develop resistance to antibiotics, resulting in the appearance of infections that are difficult or impossible to treat. This ability enables bacteria to survive in hostile environments and can result from exposure to even small amounts of antibiotic substances. Bacteria are present in the reproductive tract of the horse; they can develop resistance to antibiotics, because the animal has been treated for an infection, or due to insemination with a semen dose that contains antibiotics. Bacteria colonize the membrane lining the male reproductive tract and are transferred to the semen during collection. They can cause sperm quality to deteriorate during storage or may cause an infection in the mare. Therefore, antibiotics are added to the semen dose, according to legislation. However, these antibiotics may contribute to the development of resistance. Current recommendations are that antibiotics should only be used to treat bacterial infections and where the sensitivity of the bacterium to the antibiotic has first been established. Therefore, adding antibiotics to semen extenders does not fit these recommendations. In this review, we examine the effects of bacteria in semen and in the inseminated mare, and possible alternatives to their use.Bacteria develop resistance to antibiotics following low-level "background " exposure to antimicrobial agents as well as from exposure at therapeutic levels during treatment for bacterial infections. In this review, we look specifically at antimicrobial resistance (AMR) in the equine reproductive tract and its possible origin, focusing particularly on antibiotics in semen extenders used in preparing semen doses for artificial insemination. Our review of the literature indicated that AMR in the equine uterus and vagina were reported worldwide in the last 20 years, in locations as diverse as Europe, India, and the United States. Bacteria colonizing the mucosa of the reproductive tract are transferred to semen during collection; further contamination of the semen may occur during processing, despite strict attention to hygiene at critical control points. These bacteria compete with spermatozoa for nutrients in the semen extender, producing metabolic byproducts and toxins that have a detrimental effect on sperm quality. Potential pathogens such as Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa may occasionally cause fertility issues in inseminated mares. Antibiotics are added during semen processing, according to legislation, to impede the growth of these microorganisms but may have a detrimental effect on sperm quality, depending on the antimicrobial agent and concentration used. However, this addition of antibiotics is counter to current recommendations on the prudent use of antibiotics, which recommend that antibiotics should be used only for therapeutic purposes and after establishing bacterial sensitivity. There is some evidence of resistance among bacteria found in semen samples. Potential alternatives to the addition of antibiotics are considered, especially physical removal separation of spermatozoa from bacteria. Suggestions for further research with colloid centrifugation are provided.
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22.
  • Tengvall, Katarina, et al. (författare)
  • Genome-Wide Analysis in German Shepherd Dogs Reveals Association of a Locus on CFA 27 with Atopic Dermatitis
  • 2013
  • Ingår i: PLOS Genetics. - : Public Library of Science (PLoS). - 1553-7390 .- 1553-7404. ; 9:5, s. e1003475-
  • Tidskriftsartikel (refereegranskat)abstract
    • Humans and dogs are both affected by the allergic skin disease atopic dermatitis (AD), caused by an interaction between genetic and environmental factors. The German shepherd dog (GSD) is a high-risk breed for canine AD (CAD). In this study, we used a Swedish cohort of GSDs as a model for human AD. Serum IgA levels are known to be lower in GSDs compared to other breeds. We detected significantly lower IgA levels in the CAD cases compared to controls (p = 1.1x10(-5)) in our study population. We also detected a separation within the GSD cohort, where dogs could be grouped into two different subpopulations. Disease prevalence differed significantly between the subpopulations contributing to population stratification (lambda = 1.3), which was successfully corrected for using a mixed model approach. A genome-wide association analysis of CAD was performed (n(cases) = 91, n(controls) = 88). IgA levels were included in the model, due to the high correlation between CAD and low IgA levels. In addition, we detected a correlation between IgA levels and the age at the time of sampling (corr = 0.42, p = 3.0x10(-9)), thus age was included in the model. A genome-wide significant association was detected on chromosome 27 (p(raw) = 3.1x10(-7), p(genome) = 0.03). The total associated region was defined as a similar to 1.5-Mb-long haplotype including eight genes. Through targeted re-sequencing and additional genotyping of a subset of identified SNPs, we defined 11 smaller haplotype blocks within the associated region. Two blocks showed the strongest association to CAD. The similar to 209-kb region, defined by the two blocks, harbors only the PKP2 gene, encoding Plakophilin 2 expressed in the desmosomes and important for skin structure. Our results may yield further insight into the genetics behind both canine and human AD.
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23.
  • Cuevas Romero, Julieta Sandra (författare)
  • Studies of the molecular genetics and epidemiology of porcine rubulavirus infection
  • 2015
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Porcine rubulavirus (PorPV) infection emerged spontaneously in pigs in Mexico in the early 1980s. Since the report of the initial outbreak of the disease, only one full-length genome from a strain isolated in 1984 (PorPV-LPMV/1984) has been sequenced. There is therefore limited information about the genetic variation of this virus. The overall objective of this thesis was to develop molecular techniques to help in the diagnostic field and to investigate in greater detail the full genomes of several isolates, and if possible, gain insights into the persistence, molecular epidemiology and the possible reservoirs of PorPV. In addition, a characterisation of the immune response during acute and persistent infection was included. A real-time RT-PCR was developed for the detection of viral RNA from PorPV in clinical samples using TaqMan technology and primers for the P gene. This assay was highly sensitive (approximately 10 copies per reaction), specific, reproducible and a very useful tool for molecular diagnostics and for enabling studies of various aspects of PorPV throughout this thesis. RT-PCRs based on the NP and P genes were used to study the tissue distribution of the virus. Viral mRNA in the lymph nodes showed that the NP gene was consistently detected in the parotid, submaxilar, cervical and mesenteric nodes and the pancreas. Full-length genomes were sequenced from new isolates obtained from clinical cases of infected swine. The genetic comparison and phylogenetic analysis indicated that three different genetic variants of PorPV had spread in the swine population and that a new generation of circulating virus with a pronounced attenuation has begun to emerge in nature. We also report the isolation of PorPV, or a related virus, from frugivorous, insectivorous, and hematophagous bats. A partial genome sequence analysis showed a 99.97 - 100% amino acid identity to the reference strain isolated from swine. However, larger parts of the genome must be sequenced to ascertain the genetic relationship between these viruses. The study of the immune response during acute and persistent infection revealed enhanced levels of CD8+, CD4+ and CD2+ T-cells in all infected pigs at 10 days PI. CD8+ T-cell subpopulations were significantly higher (p<0.05) at 10 and 250 days PI, and CD4+ T-lymphocytes were also significant at 250 days PI. In summary, this work developed molecular techniques that can be used to study the pathogenesis and molecular epidemiology of PorPV. The knowledge of the presence of different virus variants in nature, associated with a wildlife reservoir of PorPV can provide greater knowledge regarding the molecular genetic changes and useful data to establish new strategies in the control of this virus in Mexico.
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24.
  • Johansson Wensman, Jonas, et al. (författare)
  • Borna disease virus infection in cats
  • 2014
  • Ingår i: Veterinary Journal. - : Elsevier BV. - 1090-0233 .- 1532-2971. ; 201, s. 142-149
  • Forskningsöversikt (refereegranskat)abstract
    • Bornaviruses are known to cause neurological disorders in a number of animal species. Avian Bornavirus (ABV) causes proventricular dilatation disease (PDD) in birds and Borna disease virus (BDV) causes Borna disease in horses and sheep. BDV also causes staggering disease in cats, characterised by ataxia, behavioural changes and loss of postural reactions. BDV-infection markers in cats have been reported throughout the world. This review summarizes the current knowledge of Borna disease viruses in cats, including etiological agent, clinical signs, pathogenesis, epidemiology and diagnostics, with comparisons to Bornavirus infections in other species.
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25.
  • Johansson Wensman, Jonas (författare)
  • Bornaviruses
  • 2013
  • Ingår i: Mononegaviruses of Veterinary Importance Vol. I: Pathobiology and Molecular Diagnosis. - UK : CABI. - 9781780641799 ; , s. 1-14
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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26.
  • Karlsson, Frida (författare)
  • Treponema spp. in porcine skin ulcers : clinical aspects
  • 2014
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The hypothesis tested in this work is that bacteria of genus Treponema play a main role when shoulder ulcers and ear necrosis occur in an infectious or severe form, and perhaps also in other skin conditions in the pig. Samples were collected from pigs in 19 Swedish herds 2010-2011. The sampled skin lesions included 52 shoulder ulcers, 57 ear necroses, 4 facial necroses and 5 other skin ulcers. Occurrence of spirochetes was detected by phase contrast microscopy, Warthin-Starry silver staining, PCR and Fluorescent In Situ Hybridization (FISH). Treponemal diversity was investigated by sequencing of 16S-23S rRNA intergenic spacer region 2 (ISR2) and high-throughput sequencing (HTS) of a part of the 16S rRNA gene. Culturing and characterization of treponemes by biochemical analyses, testing of antimicrobial susceptibility and fingerprinting by random amplified polymorphic DNA (RAPD) were carried out. A challenge study was performed to test if Treponema pedis induced skin lesions. Serological response towards TPE0673, a T. pedis protein, was tested with ELISA. Spirochetes were found in all types of skin ulcers and in all herds. The occurrence of Treponema spp. detected by PCR was 52% in shoulder ulcers, 46% in ear necrosis and 9.7% in gingiva. Treponemes were identified in 69% of the shoulder ulcers and in 59% of the ear necroses by FISH. A phylogenetic tree revealed a great variability of treponemes. Three main phylotypes were identified; T. pedis, Treponema parvum and one phylotype without designation. Twelve isolates of T. pedis, T. parvum, and one phylotype most similar to Treponema sp. OMZ 840 were obtained. All except two had unique RAPD fingerprints. Biochemical tests could not differentiate between the isolates and they were generally susceptible to tested antimicrobials. By FISH, treponemes were visualized deep in the ulcers and a predominance of T. pedis was noted, and confirmed by HTS. Challenged pigs did not develop any lesions or IgG response towards the T. pedis protein. Most sows with shoulder ulcers showed a strong, and most cases of ear necrosis a weak IgG response towards TPE0673. In conclusion, Treponema spp. are frequently abundant in ear necroses and shoulder ulcers in pigs. Identical phylotypes and ISR2 sequences from ulcers and gingiva indicate spreading from mouth to ulcer. A broad diversity of phylotypes was revealed, but the predominance of T. pedis suggests specific importance of this species. Our results point towards an important role of treponemes in chronic and severe skin ulcers in pigs.
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27.
  • Riihimäki, Miia, et al. (författare)
  • Viral load of equine herpesviruses 2 and 5 in nasal swabs of actively racing Standardbred trotters: Temporal relationship of shedding to clinical findings and poor performance
  • 2015
  • Ingår i: Veterinary Microbiology. - : Elsevier BV. - 0378-1135 .- 1873-2542. ; 179, s. 142-148
  • Tidskriftsartikel (refereegranskat)abstract
    • The equine gamma herpesviruses 2 and 5 (EHV-2 and -5) have frequently been observed in the equine population and until recently presumed low to nonpathogenic. However, recent reports linking presence of equine gamma herpesviruses with clinical signs of mild to severe lung disease, suggest that the role of these viruses in respiratory disease and poor performance syndrome is still unclear. Moreover, baseline data regarding the temporal pattern of shedding of EHV-2 and EHV-5 within stables and within individual actively racing horses have been lacking. In a prospective longitudinal study, we followed elite racing Standardbred trotters at monthly intervals for 13 months, to investigate whether the amount of EHV-2 and EHV-5 shedded in nasal secretions varied over time within and between individual horses. Sixty-six elite horses were investigated by analyzing nasal swabs and serum samples, a health check and evaluation of athletic performance monthly during the study period. Nasal swabs were analyzed with two newly developed qPCR assays for EHV-2 and EHV-5, respectively. Of 663 samples, 197 (30%) were positive for EHV-2 and 492(74%) positive for EHV-5. Furthermore, 176(27%) of the samples were positive for both EHV-2 and EHV-5 simultaneously. There was considerable variation in the amount and frequency of shedding of EHV-2 and EHV-5 within and between individual horses. Viral load varied seasonally, but neither EHV-2 nor EHV-5 viral peaks were associated with clinical respiratory disease and/or poor performance in racing Standardbred trotters. (C) 2015 Elsevier B.V. All rights reserved.
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28.
  • Abraham, Maria Celina, et al. (författare)
  • Testicular length as an indicator of the onset of sperm production in alpacas under Swedish conditions
  • 2016
  • Ingår i: Acta Veterinaria Scandinavica. - : Springer Science and Business Media LLC. - 0044-605X .- 1751-0147. ; 58
  • Tidskriftsartikel (refereegranskat)abstract
    • Background The popularity of alpacas (Vicugna pacos) is increasing in Sweden as well as in other countries; however, knowledge about optimal management practices under Swedish conditions is still limited. The wide age range reported when the onset of puberty can occur, between 1 and 3years of age, makes management decisions difficult and may be influenced by the conditions under which the alpacas are kept. The aim of this study was to find out when Swedish alpacas can be expected to start producing sperm, by using testicular length and body condition score as a more precise indirect indicator than age. Results This study suggests that animals with a testicular length ≥3.8cm would be producing sperm; however, if it is crucial to know that there is no sperm production for management purposes, the threshold level for testicular length used to differentiate between sperm-producing and non-sperm producing animals should be ≤1.6cm instead. If only one variable is considered, testicular length appears to better than age alone to predict sperm production. Body condition score together with testicular length explains the individual onset of puberty and better guide management recommendations. Conclusions Using a combination of these parameters (testicular length, body condition score and age) as a tool for decision making for alpaca husbandry under Swedish conditions is suggested.
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29.
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30.
  • Alonso, Silvia, et al. (författare)
  • Where literature is scarce : observations and lessons learnt from four systematic reviews of zoonoses in African countries.
  • 2016
  • Ingår i: Animal Health Research Reviews. - 1466-2523 .- 1475-2654. ; 17:1, s. 28-38
  • Tidskriftsartikel (refereegranskat)abstract
    • The success of a systematic review depends on the availability, accessibility and quality of literature related to the review question. This paper presents the literature found in four systematic reviews conducted for a selection of zoonotic hazards in four livestock value chains in Africa, as well as setting out the challenges in conducting the reviews. The protocol was designed following international standards, and addressed four questions around prevalence, risk factors, control options and impact of various hazards and populations. Searches were conducted in four online databases. Articles were screened for relevance, and quality was assessed before data extraction. Literature on zoonotic hazards was in general scarce and access to full articles was limited. Overall, 25-40% of papers were considered poor quality. The diversity of approaches and designs in the studies compromised the ability to generate summarized estimates. We found that the emphasis of veterinary research has been on livestock problems rather than public health issues, although this seems to be shifting in the last decade; we also found there are limited studies on impact and control. While increasing literature is being published around zoonoses in Africa, this is still inadequate to appropriately inform policy and guide research efforts.
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31.
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32.
  • Aspán, Anna, et al. (författare)
  • Longitudinal observational study over 38 months of verotoxigenic Escherichia coli O157: H7 status in 126 cattle herds
  • 2015
  • Ingår i: Preventive Veterinary Medicine. - : Elsevier BV. - 0167-5877 .- 1873-1716. ; 121, s. 343-352
  • Tidskriftsartikel (refereegranskat)abstract
    • Verotoxigenic Escherichia coli O157:H7 (VTEC O157:H7) is an important zoonotic pathogen capable of causing infections in humans, sometimes with severe symptoms such as hemorrhagic colitis and hemolytic uremic syndrome (HUS). It has been reported that a subgroup of VTEC O157:H7, referred to as clade 8, is overrepresented among HUS cases. Cattle are considered to be the main reservoir of VTEC O157:H7 and infected animals shed the bacteria in feces without showing clinical signs of disease. The aims of the present study were: (1) to better understand how the presence of VTEC O157:H7 in the farm environment changes over an extended period of time, (2) to investigate potential risk factors for the presence of the bacteria, and (3) describe the distribution of MLVA types and specifically the occurrence of the hypervirulent strains (clade 8 strains) of VTEC O157:H7. The farm environment of 126 cattle herds in Sweden were sampled from October 2009 to December 2012 (38 months) using pooled pat and overshoe sampling. Each herd was sampled, on average, on 17 occasions (range = 1-20; median = 19), at intervals of 64 days (range = 7-205; median = 58). Verotoxigenic E. coli O157:H7 were detected on one or more occasions in 53% of the herds (n= 67). In these herds, the percentage of positive sampling occasions ranged from 6% to 72% (mean = 19%; median = 17%). Multi-locus variable number tandem repeat analysis (MLVA) typing was performed on isolates from infected herds to identify hypervirulent strains (clade 8). Clustering of MLVA profiles yielded 35 clusters and hypervirulent strains were found in 18 herds; the same cluster was often identified on consecutive samplings and in nearby farms. Using generalized estimating equations, an association was found between the probability of detecting VTEC O157:H7 and status at the preceding sampling, season, herd size, infected neighboring farms and recent introduction of animals. This study showed that the bacteria VTEC O157:H7 were spontaneously cleared from the farm environment in most infected herds over time, and key factors were identified to prevent the spread of VTEC O157:H7 between cattle herds.
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33.
  • Backhans, Annette, et al. (författare)
  • A Comparison of Pig Farmers' and Veterinarians' Perceptions and Intentions to Reduce Antimicrobial Usage in Six European Countries
  • 2016
  • Ingår i: Zoonoses and Public Health. - : Wiley. - 1863-1959 .- 1863-2378. ; 63, s. 534-544
  • Tidskriftsartikel (refereegranskat)abstract
    • Antimicrobial (AM) resistance is an increasing problem in human and veterinary medicine. To manage this problem, the usage of AM should be reduced in pig farming, as well as in other areas. It is important to investigate the factors that influence both pig farmers' and veterinarians' intentions to reduce AM usage, which is a prerequisite for developing intervention measures. We conducted a mail survey among pig farmers (N=1,294) and an online survey among veterinarians (N=334) in Belgium, Denmark, France, Germany, Sweden and Switzerland. The farmers' survey assessed the perceived risks and benefits of and need for AM usage; the intention to reduce AM usage; farmers' efficacy (i.e. perception of their ability to reduce AM usage); support from their veterinarian; and the future reduction potential of AM usage. Additionally, self-reported reduction behaviours, the perceived farmers' barriers to reduce AM usage and relationships with farmers were assessed in the veterinarians' survey. The results showed that farmers and veterinarians had similar perceptions of the risks and benefits of AM usage. Veterinarians appeared to be more optimistic than pig farmers about reducing AM usage in pig farming. Farmers believed that their efficacy over AM reduction was relatively high. Farmers' intention to reduce AM usage and veterinarians' self-reported reduction behaviours were mainly associated with factors concerning the feasibility of reducing AM usage. To promote prudent AM usage, pig farmers should learn and experience how to reduce usage by applying alternative measures, whereas veterinarians should strengthen their advisory role and competencies to support and educate farmers.
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34.
  • Backhans, Annette, et al. (författare)
  • Alternatives to the use of antimicrobial agents in pig production: A multi-country expert-ranking of perceived effectiveness, feasibility and return on investment : A multi-country expert-ranking of perceived effectiveness, feasibility and return on investment
  • 2015
  • Ingår i: Preventive Veterinary Medicine. - : Elsevier BV. - 0167-5877 .- 1873-1716. ; 118, s. 457-466
  • Tidskriftsartikel (refereegranskat)abstract
    • Nineteen alternatives to antimicrobial agents were ranked on perceived effectiveness, feasibility and return on investment (ROI) from 0 (not effective, not feasible, no ROI) to 10 (fully effective, completely feasible, maximum ROI) by 111 pig health experts from Belgium, Denmark, France, Germany, Sweden and Switzerland.The top 5 measures in terms of perceived effectiveness were (1) improved internal biosecurity, (2) improved external biosecurity, (3) improved climate/environmental conditions, (4) high health/Specific Pathogen Free/disease eradication and (5) increased vaccination. The top 5 measures in terms of perceived feasibility were (1) increased vaccination, (2) increased use of anti-inflammatory products, (3) improved water quality, (4) feed quality/optimization and (5) use of zinc/metals. The top 5 measures in terms of perceived ROI were (1) improved internal biosecurity, (2) zinc/metals, (3) diagnostics/action plan, (4) feed quality/optimization and (5) climate/environmental improvements. Univariate linear regression showed that veterinary practitioners rank internal biosecurity, vaccination, use of zinc/metals, feed quality optimization and climate/environmental on average highest, while researchers and professors focused more on increased use of diagnostics and action plans. Financial incentives/penalties ranked low in all countries. Belgian respondents ranked feed quality significantly lower compared to the German respondents while reduction of stocking density was ranked higher in Belgium compared to Denmark. Categorical Principal Component Analysis applied to the average ranking supported the finding that veterinary practitioners had a preference for more practical, common and already known alternatives.The results showed that improvements in biosecurity, increased use of vaccination, use of zinc/metals, feed quality improvement and regular diagnostic testing combined with a clear action plan were perceived to be the most promising alternatives to antimicrobials in industrial pig production based on combined effectiveness, feasibility and ROI. (C) 2015 Elsevier B.V. All rights reserved.
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35.
  • Backhans, Annette, et al. (författare)
  • Biosecurity level and health management practices in 60 Swedish farrow-to-finish herds
  • 2015
  • Ingår i: Acta Veterinaria Scandinavica. - : Springer Science and Business Media LLC. - 0044-605X .- 1751-0147. ; 57
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Biosecurity measures are important tools to maintain animal health in pig herds. Within the MINAPIG project, whose overall aim is to evaluate strategies to raise pigs with less antimicrobial use, biosecurity was evaluated in medium to large farrow-to-finish pig herds in Sweden. In 60 farrow-to-finish herds with more than 100 sows, the biosecurity level was evaluated using a previously developed protocol (BioCheck). In a detailed questionnaire, internal and external biosecurity was scored in six subcategories each. An overall score for biosecurity was also provided. Information regarding production parameters as well as gender and educational level of personnel working with the pigs was also collected. Descriptive statistics were used to examine the recorded data.Results: The median scores for external and internal biosecurity were 68 and 59, respectively, where 0 indicates total absence of biosecurity and 100 means maximal possible biosecurity. The subcategories for external and internal biosecurity that had the highest scores were "Purchase of animals" (external) and "Nursery unit"/"Fattening unit" (internal), while "Feed, water and equipment supplies" (external) and "Measures between compartments and equipment"/"Cleaning and disinfection" (internal) received the lowest scores. A female caretaker in the farrowing unit, a farmer with fewer years of experience and more educated personnel were positively associated with higher scores for some of the external and internal subcategories. In herds with < 190 sows, fattening pigs were mixed between batches significantly more often than in larger herds.Conclusions: The herds in this study had a high level of external biosecurity, as well as good internal biosecurity. Strong biosecurity related to the purchase of animals, protocols for visitors, the use of all-in, all-out systems, and sanitary period between batches. Still, there is room for improvement in preventing both the introduction of disease to herds (external) and the spread of infections within herds (internal). Systems for animal transport can be improved and with respect to internal biosecurity, there is especially room for improvement regarding hygiene measures in and between compartments, as well as the staff's working procedures between different groups of pigs.
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36.
  • Backhans, Annette, et al. (författare)
  • Perceptions of antimicrobial usage, antimicrobial resistance and policy measures to reduce antimicrobial usage in convenient samples of Belgian, French, German, Swedish and Swiss pig farmers
  • 2015
  • Ingår i: Preventive Veterinary Medicine. - : Elsevier BV. - 0167-5877 .- 1873-1716. ; 119, s. 10-20
  • Tidskriftsartikel (refereegranskat)abstract
    • We conducted a survey among convenient samples of pig farmers (N=281) in Belgium, France, Germany, Sweden and Switzerland. We identified some significant differences among the five investigated countries (independent variable) regarding farmers' antimicrobial usage compared to their own country and worries related to pig farming (dependent variables), but most of the differences were rather small. In general, farmers perceived their own antimicrobial usage to be lower than that of their peers in the same country and lower than or similar to that of farmers from other countries. This may be a consequence of our convenience sample, resulting in self-selection of highly motivated farmers. Farmers were significantly more worried about financial/legal issues than about antimicrobial resistance. They believed that a reduction in revenues for slaughter pigs treated with a large amount of antimicrobials would have the most impact on reduced antimicrobial usage in their country. Further, farmers who were more worried about antimicrobial resistance and who estimated their own antimicrobial usage as lower than their fellow countrymen, perceived more impact from policy measures on the reduction of antimicrobials. Our results indicated that the same policy measures can be applied to reduce antimicrobial usage in pig farming in all five countries. Moreover, it seems worthwhile to increase pig farmers' awareness of the threat of antimicrobial resistance and its relation to antimicrobial usage; not only because pig farmers appeared little worried about antimicrobial usage but also because it affected farmers' perception of policy measures to reduce antimicrobial usage. Our samples were not representative for the national pig farmer populations. Further research is therefore needed to examine to what extent our findings can be generalised to these populations and to farmers in other countries. (C) 2015 Elsevier B.V. All rights reserved.
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37.
  • Baranowska Körberg, Izabella, et al. (författare)
  • Clinical characteristics of epilepsy of unknown origin in the Rottweiler breed
  • 2015
  • Ingår i: Acta Veterinaria Scandinavica. - : Springer Science and Business Media LLC. - 0044-605X .- 1751-0147. ; 57
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Epilepsy is one of the most common neurological conditions in dogs. Despite that epilepsy appears to be common in the Rottweiler breed, published literature about the phenotype of epilepsy in this breed is lacking. The aim of this questionnaire-based study was to describe the clinical characteristics of epilepsy in the Rottweiler breed including; signalment, pedigree, housing conditions and information about the seizures such as age at onset, seizure type, duration, and progression, as well as number of seizure days (24 h), effect and side effects of anti-epileptic drugs, and potential comorbidities. The diagnosis for epilepsy of unknown origin was based on the following inclusion criteria: >= 2 seizure days, starting between 6 months and 7 years of age, no known history of poisoning or serious head trauma, and (when available), pre-study routine serum biochemical parameters were within the reference intervals.Results: A total of 37 cases (23 females and 14 males) were included in the study. The median age at onset of seizures was 36 months (range 8-84 months). The dogs suffered from generalized tonic-clonic seizures, and more than 50 % of the dogs had experienced cluster seizures (>1 seizure in 24 h). The dogs commonly started to seizure while resting (23/36) and/or sleeping (20/36). Only 3 of the 36 dogs experienced seizures during activities such as walking or training. All of the 24/37 (64.9 %) dogs on antiepileptic drugs received phenobarbital. Five dogs needed addon treatment (n = 5), and of these: one dog was on 3 drugs (phenobarbital, potassium bromid and levetiracetam) (n = 1), three dogs were on phenobarbital and potassium bromide (n = 3), and one dog received phenobarbital and imepitoin (n = 1). Seizure frequency did not necessarily improve following antiepileptic treatment, and for six of 21 (28.6 %) of the dogs, seizure frequency increased. All of the Rottweilers in this study had relatives with epilepsy reported.Conclusions: The Rottweilers suffering from epilepsy in this study presented with generalized tonic-clonic seizures, and their response to antiepileptic treatment was variable. More than 50 % of the dogs had experienced cluster seizures (>1 seizure in 24 h).
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38.
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39.
  • Bergh, Anna, et al. (författare)
  • A Systematic Review of Complementary and Alternative Veterinary Medicine in Sport and Companion Animals : Soft Tissue Mobilization
  • 2022
  • Ingår i: Animals. - : MDPI. - 2076-2615. ; 12:11
  • Forskningsöversikt (refereegranskat)abstract
    • Soft tissue mobilization is frequently used in the treatment of sport and companion animals. There is, however, uncertainty regarding the efficacy and effectiveness of these methods. Therefore, the aim of this systematic literature review was to assess the evidence for clinical effects of massage and stretching in cats, dogs, and horses. A bibliographic search, restricted to studies in cats, dogs, and horses, was performed on Web of Science Core Collection, CABI, and PubMed. Relevant articles were assessed for scientific quality, and information was extracted on study characteristics, species, type of treatment, indication, and treatment effects. Of 1189 unique publications screened, 11 were eligible for inclusion. The risk of bias was assessed as high in eight of the studies and moderate in three of the studies, two of the latter indicating a decreased heart rate after massage. There was considerable heterogeneity in reported treatment effects. Therefore, the scientific evidence is not strong enough to define the clinical efficacy and effectiveness of massage and stretching in sport and companion animals.
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40.
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41.
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42.
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43.
  • Bergsten, Christer (författare)
  • Walking and standing surfaces for longevity; These floors are made for walking
  • 2013
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Summary High yielding dairy cows are housed for most of the year, most of their production cycle, or most of their life. When dairy cows are confined, as in a free stall system, their feet (when standing) and legs (when lying) are influenced in several ways: wear, trauma, loading, and by microorganisms especially if the hygiene is poor. Moreover, exposure for environmental risk factors are also important and therefore cow traffic is of concern in the planning. Even if the lying area is of outmost importance it cannot compensate for poor flooring because animals still have to move around to socialize, to feed and to be milked. The ability for each specific function such as resting, standing and walking must, therefore, be optimized. That means a soft yielding floor with, enough friction to reduce claw over growth yet preventing over wear and avoiding poor hygiene by ensuring as dry and clean floors as possible. Although optional, some kind of foot wash is beneficial.
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44.
  • Björkman, Camilla, et al. (författare)
  • Cryptosporidium infections in suckler herd beef calves
  • 2015
  • Ingår i: Parasitology. - 0031-1820 .- 1469-8161. ; 142, s. 1108-1114
  • Tidskriftsartikel (refereegranskat)abstract
    • A study was carried out to investigate how common Cryptosporidium infections are in beef calves in Swedish suckler herds and to explore which species and subtypes that occur. We further aimed at identifying factors associated with shedding of Cryptosporidium oocysts in this type of calf management. The study was conducted in two regions in Sweden and included 30 herds. Faecal samples were collected from calves younger than 3 months. A brief clinical examination was done and a questionnaire was used to collect data on management routines. Faeces were cleaned and concentrated and oocysts identified by epifuorescence microscopy. Cryptosporidium positive samples were analyzed at the 18S rRNA and GP60 genes to determine species and Cryptosporidium parvum subtype, respectively. Logistic regression was used to identify factors associated with infection. Oocysts were detected in 122 (36·7%) calves from 29 (97%) herds, at 400 to 2·4 × 107 OPG. The youngest positive calves were only 1 and 2 days old. There was no association between age and Cryptosporidium infection. Cryptosporidium bovis, C. ryanae, C. parvum and C. ubiquitum were identified, with C. bovis being the major species. Two C. parvum subtypes, IIaA16G1R1 and IIdA27G1 were identified. Routines for cleaning calf pens and number of cows in calving pens were associated with infection.
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45.
  • Björnström, Agnes, et al. (författare)
  • Sindbis virus neutralising antibodies detected in Swedish horses
  • 2021
  • Ingår i: One Health. - : Elsevier. - 2352-7714. ; 12
  • Tidskriftsartikel (refereegranskat)abstract
    • A number of viruses transmitted by mosquitoes are well known to cause disease in both humans and horses, ranging from mild fevers to mortal neurological disease. A recently discovered connection between the alphavirus Sindbis virus (SINV) and neurological disease in horses in South Africa initiated this serological study in northern Europe, where the same genotype of SINV (SINV-I) is also highly endemic. We tested 171 serum samples, originally obtained from horses for other reasons from April to October 2019, for presence of SINV neutralising antibodies using a plaque reduction neutralisation test (PRNT). The serum from six horses reduced the plaque count more than 80%, and two out of these reduced the plaque count more than 90%. These horses were sampled in six different regions of Sweden, and included individuals sampled from April to August. This study shows that horses in Sweden have become infected with SINV and developed neutralising antibodies. Potential connections between infection and development of disease are important questions for future studies.
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46.
  • Blodörn, Krister, et al. (författare)
  • A bovine respiratory syncytial virus model with high clinical expression in calves with specific passive immunity
  • 2015
  • Ingår i: BMC Veterinary Research. - : Springer Science and Business Media LLC. - 1746-6148. ; 11
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Bovine respiratory syncytial virus (BRSV) is a major cause of respiratory disease in cattle worldwide. Calves are particularly affected, even with low to moderate levels of BRSV-specific maternally derived antibodies (MDA). Available BRSV vaccines have suboptimal efficacy in calves with MDA, and published infection models in this target group are lacking in clinical expression. Here, we refine and characterize such a model.  Results In a first experiment, 2 groups of 3 calves with low levels of MDA were experimentally inoculated by inhalation of aerosolized BRSV, either: the Snook strain, passaged in gnotobiotic calves (BRSV-Snk), or isolate no. 9402022 Denmark, passaged in cell culture (BRSV-Dk). All calves developed clinical signs of respiratory disease and shed high titers of virus, but BRSV-Snk induced more severe disease, which was then reproduced in a second experiment in 5 calves with moderate levels of MDA. These 5 calves shed high titers of virus and developed severe clinical signs of disease and extensive macroscopic lung lesions (mean+/−SD, 48.3+/−12.0% of lung), with a pulmonary influx of inflammatory cells, characterized by interferon gamma secretion and a marked effect on lung function.  Conclusions We present a BRSV-infection model, with consistently high clinical expression in young calves with low to moderate levels of BRSV-specific MDA, that may prove useful in studies into disease pathogenesis, or evaluations of vaccines and antivirals. Additionally, refined tools to assess the outcome of BRSV infection are described, including passive measurement of lung function and a refined system to score clinical signs of disease. Using this cognate host calf model might also provide answers to elusive questions about human RSV (HRSV), a major cause of morbidity in children worldwide.
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47.
  • Boström, Anna, et al. (författare)
  • Systematic review of complementary and alternative veterinary medicine in sport and companion animals: extracorporeal shockwave therapy
  • 2022
  • Ingår i: Animals. - : MDPI. - 2076-2615. ; 12:22
  • Forskningsöversikt (refereegranskat)abstract
    • Background: Extracorporeal shockwave therapy (ECSWT) is increasingly used to treat different types of musculoskeletal conditions in sport and companion animals. To explore the scientific basis for the treatment, we conducted a systematic review of the literature on ECSWT used in horses, dogs, and cats. Methods: Relevant articles published in 1980–2020 were identified from three major databases. Each article was assessed for risk of bias. Results: The review identified 27 relevant articles on the effects of ECSWT in horses, nine in dogs, but none in cats. Typically, ECSWT involved one to three treatment sessions at 1- to 3-week intervals. We identified studies on bone mass and bone healing, wound healing, navicular disease, ligament injury, desmitis, sesamoiditis, tendon injury, osteoarthritis, and short-term analgesic effects. Common to all indications was that the scientific evidence was very limited. For each separate indication, there were relatively few studies, many of which had methodological flaws. Where favorable results were reported, they were usually not replicated in independent studies. A few encouraging results were found. Conclusions: In sport and companion animals, the scientific evidence for clinical effects of ECSWT in horses, dogs, and cats is limited. For some applications, notably short-term pain relief, ligament ailments, and osteoarthritis, the results seem promising and warrant further exploration in high-quality studies.
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48.
  • Boström, Anna, et al. (författare)
  • Systematic review of complementary and alternative veterinary medicine in sport and companion animals: therapeutic ultrasound
  • 2022
  • Ingår i: Animals. - : MDPI. - 2076-2615. ; 12:22
  • Forskningsöversikt (refereegranskat)abstract
    • Background: To explore the scientific evidence for therapeutic ultrasound (TU), we conducted a systematic review of the literature on TU in dogs, horses, donkeys, and cats. Methods: In three major databases, relevant articles published in 1980–2020 were identified. The risk of bias in each article was evaluated. Results: Twenty-four relevant articles on the effects of TU in dogs, nine in horses, two in donkeys, and one in cats were identified. TU usually involved 2–6 treatments weekly for up to 4 weeks. Articles on tendon, ligament, and bone healing, acute aseptic arthritis, osteoarthritis, paraparesis, hindquarter weakness, and back muscle pain were identified. In experimental bone lesions in dogs, there is moderate scientific evidence for enhanced healing. For the treatment of other musculoskeletal conditions, the scientific evidence is insufficient due to the high risk of bias. There is substantial evidence that continuous TU increases tissue temperature in muscles and tendons by up to 5 °C in healthy animals. For disorders in tendons, ligaments, muscles, and joints in sport and companion animals, there is insufficient evidence for the clinical effects of TU.
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49.
  • Deka, Ram Pratim, et al. (författare)
  • Bovine brucellosis : prevalence, risk factors, economic cost and control options with particular reference to India- a review
  • 2018
  • Ingår i: Infection Ecology & Epidemiology. - : Taylor & Francis. - 2000-8686. ; 8:1
  • Tidskriftsartikel (refereegranskat)abstract
    • ABSTRACTBackground: Brucellosis is an economically important zoonotic disease with worldwide distribution, with low-income countries being more affected. The disease is endemic in India, a country that house the world’s largest cattle and buffalo population and produce the most milk in the world.Results: Prevalence of the disease in the country is reported as low as 1% to as high as 60% by different researchers but many of the published studies that reported higher prevalence were conducted in non-randomised samples. Based on this review, overall prevalence in the country is likely 12% or less. About 20 different risk factors are reported that contribute/predispose to occurrence of bovine brucellosis. The risk factors could be classified in four groups: host factors, farmer’s factors, managemental factors, and agro-ecological factors. Various studies reported high economic burden of the diseases in dairy animals but there is dearth of comprehensive and rigorous economic studies.Conclusions: In the absence...
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50.
  • Dohoo, Ian R., et al. (författare)
  • Multiple imputation in veterinary epidemiological studies : A case study and simulation
  • 2016
  • Ingår i: Preventive Veterinary Medicine. - : Elsevier BV. - 0167-5877 .- 1873-1716. ; 129, s. 35-47
  • Tidskriftsartikel (refereegranskat)abstract
    • The problem of missing data occurs frequently in veterinary epidemiological studies. Most studies use a complete case (CC) analysis which excludes all observations for which any relevant variable have missing values. Alternative approaches (most notably multiple imputation (MI)) which avoid the exclusion of observations with missing values are now widely available but have been used very little in veterinary epidemiology. This paper uses a case study based on research into dairy producers' attitudes toward mastitis control procedures, combined with two simulation studies to evaluate the use of MI and compare results with a CC analysis. MI analysis of the original data produced results which had relatively minor differences from the CC analysis. However, most of the missing data in the original data set were in the dependent variable and a subsequent simulation study based on the observed missing data pattern and 1000 simulations showed that an MI analysis would not be expected to offer any advantages over a CC analysis in this situation. This was true regardless of the missing data mechanism (MCAR - missing completely at random, MAR - missing at random, or NMAR - not missing at random) underlying the missing values. Surprisingly, recent textbooks dealing with MI make little reference to this limitation of MI for dealing with missing values in the dependent variable. An additional simulation study (1000 runs for each of the three missing data mechanisms) compared MI and CC analyses for data in which varying levels (n = 7) of missing data were created in predictor variables. This study showed that MI analyses generally produced results that were less biased on average, were more precise (smaller SEs), were more consistent (less variability between simulation runs) and consequently were more likely to produce estimates that were close to the "truth" (results obtained from a data set with no missing values). While the benefit of MI varied with the mechanism used to generate the missing data, MI always performed as well as, or better than, CC analysis.
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