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- Stengärde, Lena, et al.
(author)
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Blood profiles in dairy cows with displaced abomasum
- 2010
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In: Journal of Dairy Science. - : American Dairy Science Association. - 0022-0302 .- 1525-3198. ; 93, s. 4691-4699
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Journal article (peer-reviewed)abstract
- An observational study was carried out in Swedish dairy herds to investigate differences between cows with and without displaced abomasum (DA), in concentrations of glucose, insulin, fructosamine, nonesterified fatty acids (NEFA), beta-hydroxybutyrate, cholesterol, haptoglobin, increased enzyme activity of aspartate aminotransferase and glutamate dehydrogenase, and the revised Quantitative Insulin Sensitivity Check Index (RQUICKI). A secondary aim was to study how blood profiles for DA cows vary with time in relation to calving. Sixty-nine DA cows within 2 to 56 d postpartum, in 60 herds, were clinically examined and blood samples were drawn at the time DA. was diagnosed. At the same time, 104 healthy control cows matched by herd and stage of lactation were also sampled. The blood parameters were studied using mixed linear models, including herd as a. random effect, and DA (case or control), parity, breed, sampling time in relation to calving, other diseases, and the interaction between DA and time as fixed effects. Concentrations were higher in DA cows than in control cows for NEFA (least squares means 1.36 vs. 0.34 mmol/L), beta-hydroxybutyrate (1.56 vs. 0.90 mmol/L), aspartate aminotransferase (1.96 vs. 0.97 mu kat/L), glutamate dehydrogenase (197 vs. 78 mu kat/L), and haptoglobin (0.76 vs. 0.17 g/L), whereas concentrations were lower in DA cows than in control cows for insulin (3.61 vs. 8.48 mU/L) and cholesterol (3.04 vs. 3.75 mmol/L). Glucose (2.83 vs. 2.79 mmol/L) and fructosamine (266 vs. 252 mu mol/L,) concentrations were similar in both groups; however, a, tendency toward lower RQUICKI: values (0.42 vs. 0.46) in the DA cows was found, indicating reduced insulin sensitivity. For most blood parameters, differences between DA cows and controls remained constant over time. Seventy-two percent of the DA cows had at least one other disease in the period from 1 wk antepartum to 1 wk after the DA was diagnosed. Haptoglobin could potentially be used to detect treatable infectious or inflammatory conditions in the early postpartum period, possibly reducing the incidence of DA. Consequently, there were major changes in blood profiles in cows with DA compared with healthy control cows, indicating a negative energy balance, liver cell damage, and an inflammatory response. The results contribute to an understanding of the, metabolic changes in DA cows.
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- Vågsholm, Ivar, et al.
(author)
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Flexible distribution of tasks in meat inspection - A pilot study
- 2019
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In: Food Control. - : Elsevier BV. - 0956-7135 .- 1873-7129. ; 102, s. 166-172
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Journal article (peer-reviewed)abstract
- The primary purpose of meat inspection is to ensure safe meat for human consumption. Moreover, meat inspection has become a key control point for animal welfare and a data collection point for baseline monitoring of the food chain, animal diseases, and meat quality. The rapid increase in herd size has increased the workload of farmers, slaughterhouses and meat inspectors. New, more cost-efficient ways of working are needed, and one option is revising the distribution of tasks during post mortem inspections. Therefore, the aim of this study was to compare the results of carcass assessments done by official auxiliaries (OA) to those done by official veterinarians (CV) during post mortem inspection of detained, slaughtered pigs. The comparison between OA and OV judgments focused on the full condemnation, local condemnation and approval of pig carcasses that were detained by the OA in the initial screening.The key findings were (a) a limited agreement between OVs and OAs; (b) a large intra-class variation among both OVs and OAs as groups; and (c) that the differences between OVs and OAs only affected the minor number of pig carcasses that were detained during the study period.The specific agreement between OAs and OVs was highest for total condemnation (68%), lowest for local condemnation (52%) and close to overall agreement for carcass approval (60%). While both the overall agreement and the agreement beyond chance were fair between groups, there was a large variation among OA-OV pairs. For example, four pairs had their pairwise kappa estimates not significantly different from zero.
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- Vågsholm, Ivar, et al.
(author)
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Meat inspection of reindeer - a rich source of data for monitoring food safety and animal and environmental health in Sweden
- 2017
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In: Infection Ecology & Epidemiology. - : Informa UK Limited. - 2000-8686. ; 7
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Journal article (peer-reviewed)abstract
- Background: This study scrutinized carcass conditions recorded in post mortem inspections (PMI) of reindeer (Rangifer tarandus tarandus, L.) during 2015–2016 because of the importance for monitoring food safety and animal and environmental health threats.Material and methods: PMI results were retrieved from the National Food Agency. A negative binomial regression model was applied. For actual parameters, incident risk rate (IRR) with confidence intervals was calculated.Results and discussion: The number of conditions found in PMI varied widely between years and batches. The most common conditions (43 and 57% of all reindeer slaughtered in 2015 and 2016, respectively) derived from non-zoonotic parasites as the most abundant one, Hypoderma tarandi. Setaria sp. as well as both inflammatory processes and trauma were found in low prevalences. Further investigation of interactions with slaughterhouse size and inspector experience is needed. The conditions found rarely indicated food safety hazards and no epizooties or zoonoses have been recorded in the past two decades. Visual PMI with complementary sampling for specific hazards in slaughterhouses could thus be a helpful tool for monitoring the health and welfare of the reindeer population, the food safety risks with reindeer meat, and the status of the environment.
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- Vågsholm, Ivar, et al.
(author)
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Reindeer – wild game ante and post mortem?
- 2017
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In: Game meat hygiene: food safety and security. - The Netherlands : Wageningen Academic Publishers. - 9789086862955 ; , s. 141-152
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Book chapter (peer-reviewed)abstract
- The official meat inspection (MI) in reindeer slaughter (Rangifer tarandus tarandus L.) has been under continuous development since it was implemented in 1968. Location of slaughter houses in areas of geographical constraints, dependence on weather, and reindeer with low grade of domestication create logistic and economic challenges. The aims of this study are to describe the MI results from reindeer slaughter during 2013-2015, and furthermore, to explore the possibilities for simplification of the post mortem inspection (PMI) without compromising food safety or animal health and welfare. In particular, we aimed to compare the results of inspection of abdominal organs (AO; liver and kidneys excluded) performed by skilled slaughter house staff with that carried out by official control staff. The economic comparisons between current procedure of PMI which is dependent on slaughter speed, and the two other independent alternatives are also calculated. The findings in MI mainly relate to non-zoonotic parasites naturally found in the reindeer ecosystem. Traumata are seen more often than at slaughter of domesticated animals. Condemnations are rare and mainly caused by emaciation. The comparison of results of the PMI of AO generated by official staff and by trained slaughter house staff showed that these procedures were at least equivalent. Skilled and trained slaughter house staff could perform the first visual inspection of AO under the responsibility of an official veterinary in a reindeer slaughter house with easier logistics and up to 87% reduction of costs without compromising food safety, animal health or welfare. This indicates a current comparative disadvantage for the reindeer meat industry, not justified by food safety.
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