VanLeeuwen John A, Tiwari Ashwani, Plaizier Jan C, Whiting Terry L
Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island.
Can Vet J. 2006 Aug;47(8):783-6.
Of 1204 dairy cows and 1425 beef cows sampled, 60.8% and 10.3% were seropositive for Bovine leukemia virus, 4.5% and 1.7% were seropositive for Mycobacterium avium subspecies paratuberculosis, and 8.3% and 9.1% were seropositive for Neospora caninum, respectively, while 28.1% of dairy herds had unvaccinated animals with titres > or = 1:64 for Bovine viral diarrhea virus.
在抽样的1204头奶牛和1425头肉牛中,牛白血病病毒血清阳性率分别为60.8%和10.3%,副结核分枝杆菌血清阳性率分别为4.5%和1.7%,犬新孢子虫血清阳性率分别为8.3%和9.1%,同时28.1%的奶牛群中有未接种疫苗且牛病毒性腹泻病毒滴度≥1:64的动物。