摘要
从河南7个县市的不同鸡群中采集鸡大肠杆菌病典型病料,经细菌学检验,分离出35株鸡大肠杆菌.动物试验结果表明:全部菌株对动物均具有很强的致病作用,多数菌株可使动物死亡率达100%.O因子血清鉴定发现8个血清型,分别为O78,O54,O119,026,O14,O9,O8,O5,其中O78型分离率为25/35,占总数的71 4%,主要分布于许昌、项城、荥阳等地,其它血清型各占1株,此外尚有3株暂未定型.药敏试验结果表明,各地分离菌株对14种药物的敏感性不同,但所有菌株对头孢唑啉、阿米卡星、卡那霉素等敏感.
Typical materials of chicken E.coli disease were collected from different chicken flocks in 7 countries of Henan Province.Thirty_five strains of chicken E.coli had been separated after bacteria identification.Results of animal experiment shows that all the strains have strong pathogenicity.Most of the strains bring 100% of the experimented animals to death.We found 8 kinds of serum type after 'O' factor serum identifying as follows:O_(78),O_(54),O_(119),O_(26),O_(14),O_9,O_8,O_5.The O_(78) whose separation rate is 25/35,take up 71.4 percent of the total number and distributes mainly in Xuchang,Xiangcheng,Xingyang regions.The other types of serum type all have one strain,furthermore,there were still three strains which cannot be identified.Results of drug sensitivity experiment indicates that the separated bacteria strains have different sensitivity to 14 kinds of drugs,but all strains are sensitive to Aefazolin,AmLikacin and Kanamycin,etc.
出处
《河南农业大学学报》
CAS
CSCD
2003年第4期392-395,共4页
Journal of Henan Agricultural University
基金
河南省科技攻关项目(0324030077)
关键词
鸡
大肠杆菌病
病原
分离
鉴定
药敏试验
chicken
Escherichia coli
isolation and identification
drug sensitivity experiment
