Detection of antibodies against Brucella abortus, Leptospira spp., and Apicomplexa protozoa in water buffaloes in the Northeast of Argentina     

José L. Konrad  Lucía M. Campero  Gastón S. Caspe  Bibiana Brihuega  Graciela Draghi  Dadin P. Moore  Gustavo A. Crudeli  María C. Venturini  Carlos M. Campero 《Tropical animal health and production》2013,45(8):1751-1756

Water buffalo industry has become a profitable activity worldwide, including the Northeast of Argentina (NEA). However, research on diseases affecting this species is scarce. The aim of the present study was to detect antibodies against Brucella abortus, Leptospira spp., Neospora caninum, Toxoplasma gondii, and Sarcocystis spp. in 500 water buffalo cows from five ranches (100 animals each) in the NEA. Serum samples were tested for B. abortus by fluorescence polarization assay, Leptospira spp. by microagglutination test, and N. caninum, T. gondii, and Sarcocystis spp. by indirect fluorescent antibody tests. Overall, the proportion of seropositive animals was 6.4, 22.2, 42.2, 25.4, and 50.8 % for brucellosis, leptospirosis, neosporosis, toxoplasmosis, and sarcocystosis, respectively. The proportion of seropositive animals for all diseases was statistically different among herds (p?<?0.05). Statistical differences were also detected among age groups for brucellosis and neosporosis (p?<?0.05). The detection of specific antibodies to B. abortus, Leptospira spp., and several Apicomplexa protozoans in water buffaloes in the NEA is reported in this study.  相似文献   

Prevalence of and risk factors for intraoperative gastroesophageal reflux and postanesthetic vomiting and diarrhea in dogs undergoing general anesthesia          下载免费PDF全文

Carlos Torrente DVM  MSc  PhD  Isabel Vigueras DVM  MSc  Edgar G. Manzanilla DVM  PhD  DECPHM  MPVM  Cecilia Villaverde DVM  MSc  PhD  DACVN  DECVCN  Laura Fresno DVM  PhD  Bibiana Carvajal DVM  Marina Fiñana DVM  Cristina Costa‐Farré DVM  PhD 《Journal of Veterinary Emergency and Critical Care》2017,27(4):397-408

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Different feed withdrawal times before slaughter influence caecal fermentation and faecal Salmonella shedding in pigs     

Martín-Peláez S  Peralta B  Creus E  Dalmau A  Velarde A  Pérez JF  Mateu E  Martín-Orúe SM 《Veterinary journal (London, England : 1997)》2009,182(3):469-473

The effects of different pre-slaughter feed withdrawal times (FWT) on the gastrointestinal tract (GIT) weight and the gut environment of pigs and Salmonella shedding were investigated. Trial 1 evaluated the effects under experimental conditions (feed withdrawal for 18, 30 and 36 h) and trial 2 under commercial conditions (15 and 30 h). In trial 1, the GIT weight tended to decrease (P=0.07), the caecal pH increased (P<0.0001), short-chain fatty acids (SCFA) decreased (P<0.001) and percentage of branched-chain fatty acids (BCFA) increased as FWT increased. Similar results were observed in trial 2, but Enterobacteriaceae numbers and Salmonella positive pigs tended to increase whereas lactobacilli decreased (P<0.0005) as FWT increased. The increase in FWT involved changes in the gut microbial ecosystem that could be associated with the trend of increased caecal Enterobacteriaceae and Salmonella in faeces, and may represent a higher risk of carcass contamination in cases of laceration of viscera.  相似文献   

A Comparative Study of Lipid Composition of an Undervalued Crustacean (Munida spp.) Captured in Winter and Summer     

Bibiana García-Soto  Marcos Trigo  Jorge Barros-Velázquez 《Journal Of Aquatic Food Product Technology》2017,26(9):1004-1013

This research was focused on the lipid fraction of an undervalued crustacean (lobster krill; Munida spp.) and the comparative study of individuals captured at winter and summer seasons. For this purpose, seasonal variations were analyzed in the muscle (i.e., tail meat) for proximate composition, lipid class distribution, and fatty acid (FA) profile. Mean total lipids ranged from 0.75 ± 0.08% (summer) to 0.92 ± 0.06% (winter), moisture from 77.94 ± 0.25% (winter) to 78.62 ± 0.38% (summer), and protein from 17.93 ± 0.46% (summer) to 18.22 ± 0.46% (winter). Regarding lipid class content (% of total lipids), phospholipids ranged from 64.85 ± 1.29 (summer) to 67.85 ± 2.56 (winter), sterols from 12.15 ± 0.35 (winter) to 13.54 ± 0.54 (summer), triacylglycerols from 0.04 ± 0.02 (summer) to 1.25 ± 0.88 (winter), and free FA from 1.14 ± 0.72 (winter) to 2.19 ± 0.34 (summer). In both seasons, the most abundant FA were C22:6ω3, C16:0, C18:1ω9, and C20:5ω3. Polyunsaturated fatty acids (PUFA) were found to be the most abundant group in samples from both seasons (50.4–55.3%). Higher PUFA values were determined in summer samples, while a highly valuable ω3/ω6 ratio (from 9.11 ± 1.12 in summer to 10.40 ± 1.39 in winter) was observed. It is concluded that in spite of being a low-fat product, the lipid fraction of this underutilized crustacean can provide highly valuable constituents.  相似文献