Bats increasingly seen as vectors     

Cima G 《Journal of the American Veterinary Medical Association》2012,240(4):355-356

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USDA reducing offices, employees     

Cima G 《Journal of the American Veterinary Medical Association》2012,240(5):503

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Mammary invasive micropapillary carcinoma in a male cat: Immunohistochemical description and clinical follow-up     

Gregório H  Pires I  Seixas F  Queiroga F 《Acta veterinaria Hungarica》2012,60(2):257-261

We describe the case of a 14-year-old Domestic Short Hair male cat that presented with a single mammary tumour one centimetre in diameter, classified as invasive micropapillary carcinoma. Histology and immunohistochemistry revealed a high mitotic index, a KI-67 index of 10%, a lack of reactivity to myoepithelial markers, and a dense infiltration with T and B lymphocytes at the periphery of the tumour. Micrometastases were detected in the regional lymph node at the time of surgery. Overall survival time was 10 months with a disease-free interval of 7.5 months. Distant metastases in the sublumbar lymph nodes confirmed the aggressiveness of this tumour, which has recently been subtyped in female cats. This is the first case reported in male cats with a complete follow-up, highlighting the importance of prompt and aggressive treatment in the presence of mammary tumours in male cats.  相似文献   

Systematic Review: What is the Best Antibiotic Treatment for Staphylococcus aureus Intramammary Infection of Lactating Cows in North America?     

Jean-Philippe Roy  Greg Keefe 《Veterinary Clinics of North America: Food Animal Practice》2012

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Antiproliferative activity of Saponaria vaccaria constituents and related compounds     

Balsevich JJ  Ramirez-Erosa I  Hickie RA  Dunlop DM  Bishop GG  Deibert LK 《Fitoterapia》2012,83(1):170-181

Total methanolic extracts of Saponaria vaccaria seed derived from several varieties, as well as various purified components obtained through successive chromatographic separations of total extracts were evaluated for their growth inhibitory activity in WiDr (colon), MDA-MB-231 (breast), NCI-417 (lung) and PC-3 (prostate) human cancer cells as well as the non-tumorigenic fibroblast BJ (CRL-2522) cell line using MTT colorimetric assay. Purified bisdesmosidic saponins segetoside H and I were further examined using microscopy and apoptosis assays. Bisdesmosidic saponins exhibited dose-dependent growth inhibitory and selective apoptosis-inducing activity. Growth inhibitory effects were particularly strong in a breast (MDA-MB-231) and a prostate (PC-3) cancer cell line. Total extracts exhibited a different preference being most active against a colon cancer cell line (WiDr). In a comparison of varieties, all of the total seed extracts exhibited similar dose-dependent activities, but with some variation in potency. Monodesmosidic saponins vaccarosides A and B, phenolic vaccarin, and cyclopeptide segetalin A, co-occurring seed substituents, did not exhibit activity. The non-tumorigenic fibroblast cell line BJ (CRL 2522) was growth inhibited but did not undergo apoptosis when treated with bisdesmosidic saponins at low micromolar concentrations. Saponin-rich extracts from Kochia scoparia seed and Chenopodium quinoa were also evaluated alongside Saponaria saponins but did not exhibit activity. Closely related Quillaja saponins exhibited activity but were less potent.  相似文献   

Do lethal trap devices threaten foot-hold trap capture efficacy?     

Paul D. Meek  Kathleen Shorter  Greg Falzon 《国际虫害防治杂志》2019,65(1):66-71

Foot-hold trapping is an important tool used in pest management programs in countries such as Australia, New Zealand and in North America. Research on humane trapping methods including the addition of sedatives (Tranquilizer Trap Device) and toxins (Lethal Trap Device) to foot-hold traps to improve the welfare of trapped pest animals is important. Lethal Trap Devices (LTD) are being tested in Australia to determine if deploying a toxin with a foot-hold trap is effective at delivering a lethal dose of toxin to trapped predators. This study aimed to test whether fitting an LTD to two different foot-hold jaw traps (Victor Soft catch #3 and Bridger #5) would affect the jaw closure time and as such affect capture rates. We found that two spring Victor Soft catch traps were faster (20.91, SD 0.72 ms) than four spring Bridger #5 traps (26.79, SD 0.48 ms) even when fitted with a Lethal Trap Device. Fitting a Lethal Trap Device to either of these trap models did not affect closure time and as such would not have any effect on capture efficacy.  相似文献   

The homogenizing influence of agriculture on forest bird communities at landscape scales     

Endenburg  Sarah  Mitchell  Greg W.  Kirby  Patrick  Fahrig  Lenore  Pasher  Jon  Wilson  Scott 《Landscape Ecology》2019,34(10):2385-2399

Landscape Ecology - Agricultural expansion is a principal driver of biodiversity loss, but the impacts on community assembly in agro-ecosystems are less clear, especially across regional scales at...  相似文献   

Relationships among milk urea-nitrogen, dietary parameters, and fecal nitrogen in commercial dairy herds          下载免费PDF全文

Pipat Arunvipas  John A. VanLeeuwen  Ian R. Dohoo  Greg P. Keefe  Shelley A. Burton    Kerry D. Lissemore 《Canadian journal of veterinary research》2008,72(5):449-453

Our study objective was to determine the ability of milk urea-nitrogen concentrations ([MUN]) to predict fecal nitrogen concentrations ([Fecal N]) in commercial dairy herds. A total of 83 dairy herds were each visited 3 times within 48 h after a monthly herd milk test. For each farm visit, forages were sampled for nutrient analyses, which were entered into a computerized ration evaluator, and fecal samples were taken per rectum from each of 6 cows (2 early-, 2 mid-, and 2 late-lactation). Fecal samples were pooled, mixed, and analyzed for nitrogen content. Fecal nitrogen concentrations were compared with the routinely measured nutritional parameters from the ration evaluation, and the herd average [MUN] for the previous milk test date using mixed linear regression analyses. Total protein supplied in the ration was significantly positively associated with [Fecal N], but herd average [MUN] was not associated (P > 0.10) with [Fecal N].  相似文献   

Frequently asked questions in orthopedics     

Greg Harasen 《The Canadian veterinary journal. La revue veterinaire canadienne》2008,49(10):1029-1030

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Spontaneous left medial liver lobe torsion and left lateral lobe infarction in a rottweiler     

Jitender Bhandal  Alan Kuzma    Greg Starrak 《The Canadian veterinary journal. La revue veterinaire canadienne》2008,49(10):1002-1004

The abdominal ultrasonogram of a dog admitted for acute onset of collapse revealed an abnormally displaced left medial liver lobe with no blood flow. Surgical and histological findings confirmed the ultrasonographic diagnosis of left liver lobe torsion. Ultrasonographic findings were useful and probably sufficient for a correct diagnosis.  相似文献