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1.
  • 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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2.
  • 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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3.
  • Blomström, Anne-Lie (författare)
  • Non-Structural Proteins of Arthropod-Borne Bunyaviruses: Roles and Functions
  • 2013
  • Ingår i: Viruses. - : MDPI AG. - 1999-4915. ; 5, s. 2447-2468
  • Forskningsöversikt (refereegranskat)abstract
    • Viruses within the Bunyaviridae family are tri-segmented, negative-stranded RNA viruses. The family includes several emerging and re-emerging viruses of humans, animals and plants, such as Rift Valley fever virus, Crimean-Congo hemorrhagic fever virus, La Crosse virus, Schmallenberg virus and tomato spotted wilt virus. Many bunyaviruses are arthropod-borne, so-called arboviruses. Depending on the genus, bunyaviruses encode, in addition to the RNA-dependent RNA polymerase and the different structural proteins, one or several non-structural proteins. These non-structural proteins are not always essential for virus growth and replication but can play an important role in viral pathogenesis through their interaction with the host innate immune system. In this review, we will summarize current knowledge and understanding of insect-borne bunyavirus non-structural protein function(s) in vertebrate, plant and arthropod.
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4.
  • 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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6.
  • 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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7.
  • 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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8.
  • 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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9.
  • 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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10.
  • Nyokabi, Ndungu S., et al. (författare)
  • Exploring veterinary students' awareness and perception of zoonoses risks, infection control practices, and biosecurity measures in Ethiopia
  • 2024
  • Ingår i: Frontiers in Veterinary Science. - : Frontiers Media S.A.. - 2297-1769. ; 11
  • Tidskriftsartikel (refereegranskat)abstract
    • Universities and colleges are often regarded as playing a key role in educating veterinarians and animal health workers who advise farmers on herd health and animal husbandry. However, to date, studies examining veterinary students' knowledge of zoonotic diseases of public health importance and the source of this knowledge, as well as their preparedness to respond to these diseases, have focused on the Global North rather than the Global South. This study takes Ethiopia as a case study in exploring veterinary medicine students' knowledge of zoonosis risks, infection control practices and biosecurity measures, recognizing that it is imperative to reconcile national-level veterinary education curricula with emerging global trends, such as One Health-focused training. This training advocates for a collaborative, interdisciplinary response at local, national, and international levels to the adverse impact of zoonotic diseases on animal health and productivity, and human and environmental health. Data for this study were collected through a pre-tested online questionnaire administered to 154 veterinary students from several universities in Ethiopia. The findings of this study suggest veterinary students were aware of the public health risks posed by zoonoses and the important role that collaboration between the disciplines of human and animal health can play in addressing zoonoses and emerging health risks. However, students demonstrated poor knowledge of the need to adopt infection control measures (ICPs) and biosecurity measures to reduce occupational risks and prevent within and between herd transmission of infection. Moreover, students' vaccination rates against zoonotic diseases associated with occupational risks, such as rabies, were low. The results of this study suggest that there are currently gaps in Ethiopia's veterinary curriculum and that enhancing veterinary students' access to information regarding infection control practices and biosecurity measures could contribute to reducing their future occupational exposure to zoonoses. This study highlights the policy implications of the current veterinary medicine curriculum in Ethiopia and the scope for aligning the curriculum with important global initiatives, such as One Health-focused training.
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