| 1. | Selected 104 samples from cattle bacterial diarrhea cases in part of shaanxi province , the pathogen isolation and identification results showed that the main bacterial pathogen were pathogenic escherichia coli . , salmonella , clostridium welchii , pasteurella pestis etc . , the escherichia coli . predominant serotypes o groups were o2 , o86 , o138 摘要采取陕西省部分地区细菌性犊牛腹泻病料104份,进行病原细菌的分离鉴定,结果表明,引起该地区犊牛腹泻的细菌性病原主要是致病性大肠杆菌、沙门氏菌、魏氏梭菌、多杀性巴氏杆菌等;大肠杆菌主要以o2 、 o86 、 o138为优势血清型。 |