Comparing the results of the serological detection of Salmonella antibodies in blood serum and meat juice from different muscles from slaughter pigs     

Nobmann JA  Blaha T  Beyerbach M  Kreienbrock L  Meemken D 《Berliner und Münchener tier?rztliche Wochenschrift》2011,124(7-8):313-319

The German Salmonella Monitoring Programme started by the QS-System in 2002 (Blaha, 2004) is mandatory due to the so-called "Salmonella Regulation for Pigs" since 2007 (Anonym, 2007). The Regulation does not clearly prescribe the specific muscle which is to be taken as source of the meat juice. Thus, at different slaughter plants meat samples are also taken from different muscles and several scientific papers describe various muscles as source of the meat juice, too. The objective of this study was to compare the serological results of meat juices from three different locations (diaphragm pillar, neck, belly muscle) to each other and to those of the blood serum from exactly the same animals. All samples were simultaneously tested for Salmonella antibodies by two serological tests (Salmo-type Pig Screen, LDL, Germany; HerdChek Swine Salmonella, IDEXX, Germany). Comparisons were carried out between the various sample kinds per animal and between the two test systems. The analysis of all results of the meat juices revealed in both test systems a clear decline of the OD% values from the diaphragm pillar to the neck to the belly muscle. The average OD% values of all samples were higher when measured by the HerdChek ELISA (IDEXX, Germany) than by the Salmotype ELISA (LDL, Germany), especially in blood serum. Since the results of the meat juice samples gained from the diaphragm pillar were in both test systems by far the closest to the results of the corresponding serum blood samples, it is recommended to amend the "Salmonella Regulation for Pigs" by prescribing meat from the diaphragm pillar as the only muscle for gaining meat juice.  相似文献   

Genetic evaluation of cutting scores in horses     

M.R. Ellersieck PhD  W.E. Lock PhD  D.W. Vogt PhD  R. Aipperspach 《Journal of Equine Veterinary Science》1985,5(5):287-289

Cutting scores for 3399 horses representing 327 different sires from the NCHA World Championship Futurities of 1975 through 1983 were used to calculate heritability and yearly change in scores. The analysis yielded a heritability estimate of 19%±5%. Appropriate selection schemes, then, should be successful in bringing about an improvement in cutting score. The analysis of yearly trend, however, indicates that average cutting scores at NCHA futurities are decreasing by 0.78 points per year.  相似文献   

Anury in two Cairn terriers     

D S Hall  J F Amann  G M Constantinescu  D W Vogt 《Journal of the American Veterinary Medical Association》1987,191(9):1113-1115

Congenital anury (taillessness) was observed in 2 Cairn Terriers. Fecal staining of the hind limbs was evident in both dogs. A mating of the affected dogs produced a litter of 2 apparently normal pups. The small litter size may have been attributable to lethal gene combinations similar to those described in mice. The radiographic appearance of the caudal and sacral vertebrae was atypical in both tailless dogs. Results of myelography and electrodiagnostic testing of anal sphincter function were normal in one of the dogs. One of the tailless dogs was euthanatized and was found to lack specific muscles and muscle parts responsible for normal defecation, which resulted in fecal staining of the hind limbs. Pedigree analysis revealed the tailless dogs to be closely related and slightly inbred, suggesting a hereditary etiologic factor for anury.  相似文献   

Associations of sire, breed, birth weight, and sex in pigs with congenital splayleg   总被引：1，自引：0，他引：1  

D W Vogt  T A Gipson  B Akremi  S Dover  M R Ellersieck 《American journal of veterinary research》1984,45(11):2408-2409

Data on 4,411 male and 4,148 female progeny from the University of Missouri-Columbia swine research herd were analyzed to evaluate the associations of sire, breed, weight at birth, and sex of the pigs with the development of congenital splayleg. Statistically significant differences in frequency of splayleg were found among sires and among breeds indicating a genetic influence. Differences in frequencies among male vs female progeny also were found to be statistically significant. The overall frequency among male progeny was 1.74 times that observed among female progeny. Comparison of birth weights of splayleg vs normal pigs showed birth weights to be statistically significantly smaller among affected pigs.  相似文献   

Reduced litter size associated with aneuploid cell lines in a pair of full-brother Duroc boars     

D W Vogt  D T Arakaki  C C Brooks 《American journal of veterinary research》1974,35(8):1127-1130

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Fos-associated protein p39 is the product of the jun proto-oncogene   总被引：109，自引：0，他引：109  

F J Rauscher  D R Cohen  T Curran  T J Bos  P K Vogt  D Bohmann  R Tjian  B R Franza 《Science (New York, N.Y.)》1988,240(4855):1010-1016

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Scale-dependent seasonal habitat selection by jaguars (Panthera onca) and pumas (Puma concolor) in Panama     

Craighead  Kimberly  Yacelga  Milton  Wan  Ho Yi  Vogt  Robert  Cushman  Samuel A. 《Landscape Ecology》2022,37(1):129-146

Landscape Ecology - Few habitat modeling studies consider multiple spatial or temporal scales; less identify the operative scale of an organism's response to predictor variables. Optimizing...  相似文献   

Predicting risks of tornado and severe thunderstorm damage to southeastern U.S. forests     

Fortuin  Christine C.  Montes  Cristian R.  Vogt  James T.  Gandhi  Kamal J. K. 《Landscape Ecology》2022,37(7):1905-1919

Landscape Ecology - The southeastern U.S. experiences tornadoes and severe thunderstorms that can economic and ecological damages to forest stands resulting in loss of timber, reduction in...  相似文献   

New trophic biomarkers for Collembola reared on algal diets     

Thomas Buse  Liliane Ruess  Juliane Filser 《Pedobiologia》2013

We used fatty acid (FA) analysis to investigate green algae and cyanobacteria as food sources for Collembola. We studied the effects of food quality on body mass and on neutral lipid (NLFA) and phospholipid (PLFA) fatty acid patterns of Collembola. Folsomia candida, Heteromurus nitidus and Protaphorura fimata were fed with common green algae (Chlorella vulgaris), filamentous soil algae (Klebsormidium flaccidum), cyanobacteria (Nostoc commune) and baker's yeast (Saccharomyces cerevisiae). Body mass of F. candida and H. nitidus was highest when reared on C. vulgaris and S. cerevisiae. P. fimata gained the most weight when fed baker's yeast. K. flaccidum and N. commune as resources resulted to low biomass in all Collembola. The four diets caused significant differences in the NLFA and PLFA composition of Collembola after six weeks of feeding. Two new trophic biomarker FAs indicating algal diets were assigned with 16:3ω3,6,9 and 16:2ω6,9, which were only present in NLFAs of Collembola consuming C. vulgaris and K. flaccidum. The amount of FAs from the ω7 family was high in Collembola lipids with cyanobacteria and yeast as food sources, whereas only trace amounts occurred in the NLFA fraction with algae as the resource. In summary, common soil algae and cyanobacteria differed in food quality for Collembola, depending on their growth form (unicellular versus filamentous) and/or secondary metabolites (e.g. cyanobacteria). The new FA biomarkers detected will allow further investigation of these trophic interactions under field conditions; for example, assessing the role of collembolan grazers in the formation of biological soil crusts.  相似文献   

Functional beetle diversity in managed grasslands: effects of region,landscape context and land use intensity     

Yunhui Liu  Christoph Rothenwöhrer  Christoph Scherber  Péter Batáry  Zoltán Elek  Juliane Steckel  Stefan Erasmi  Teja Tscharntke  Catrin Westphal 《Landscape Ecology》2014,29(3):529-540

Current biodiversity conservation policies have so far had limited success because they are mainly targeted to the scale of individual fields with little concern on different responses of organism groups at larger spatial scales. We investigated the relative impacts of multi-scale factors, including local land use intensity, landscape context and region, on functional groups of beetles (Coleoptera). In 2008, beetles were suction-sampled from 95 managed grasslands in three regions, ranging from Southern to Northern Germany. The results showed that region was the most important factor affecting the abundance of herbivores and the abundance and species composition of predators and decomposers. Herbivores were not affected by landscape context and land use intensity. The species composition of the predator communities changed with land use intensity, but only in interaction with landscape context. Interestingly, decomposer abundance was negatively related to land use intensity in low-diversity landscapes, whereas in high-diversity landscapes the relation was positive, possibly due to enhanced spillover effects in complex landscapes. We conclude that (i) management at multiple scales, from local sites to landscapes and regions, is essential for managing biodiversity, (ii) beetle predators and decomposers are more affected than herbivores, supporting the hypothesis that higher trophic levels are more sensitive to environmental change, and (iii) sustaining biological control and decomposition services in managed grassland needs a diverse landscape, while effects of local land use intensity may depend on landscape context.  相似文献