TAILIEUCHUNG - Báo cáo khoa học: "BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern Thailand"

Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành thú y đề tài: BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern Thailand. | Acta vet. scand. 2004 45 181-192. BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern Thailand By J. Kampaa b c K. Stahla J. Moreno-LopeZ1 A. Chanlunc d S. Aiumlamaie and S. Aleniusc aDivision of Parasitology and Virology Department of Biomedical Sciences and Veterinary Public Health and cDepartment of Ruminant Medicine and Veterinary Epidemiology Faculty of Veterinary Medicine and Animal Science Swedish University of Agricultural Sciences Uppsala Sweden and bDepartment of Pathobiology Department of Medicine and Department of Surgery and Theriogenology Faculty of Veterinary Medicine Khon Kaen University Thailand. Kampa J Stâhl K Moreno-Lopez J Chanlun A Aiumlamai S Alenius S BVDV and infections in dairy herds in northern and northeastern Thailand. Acta vet. scand. 2004 45 181-192. - Bulk milk samples from 220 dairy herds were collected at 9 public milk collection centres in the northeastern and northern Thailand and a subset of 11 herds was selected for individual testing. The samples were tested for presence of antibodies to BVDV and BHV-1 using an indirect ELISA. The results from the bulk milk testing demonstrated a moderate level of exposure to BVDV and BHV-1 73 and 67 respectively . However the low proportion of herds with high BVDV antibodylevels 13 and the low within-herd seroprevalence of BVDV and BHV-1 in the 11 herds 24 and 5 respectively particularly among the young stock 15 and 0 respectively demonstrated a low prevalence of active BVDV infection and a low rate of reactivation of latent BHV-1. The presence of a self-clearance process was also indicated by the results from the individual testing. Moreover a surprisingly low prevalence of BVDV and BHV-1 antibody-positive herds at one of the milk centres was found. This centre was established 5-10 years before the others. Our impression is that this reflects the self-clearance process where consecutive replacement of imported infected animals without further spread has resulted in a

TỪ KHÓA LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.