A hatchery of Hyline parental breeding birds happened to 10% hatchability drop, and their 19 800 offspring commercial chickling were sent to 14 breeding chicks farms in Jinzhong area and these chickens of 5-12 days appeared white dysenteric excrement and paste anus with mortality of 16.6%. The results of epidemiological investigation, clinic and laboratory diagnosis showed that the disease was caused by salmonella, which came from the fish meal raw material of breeding hens feed, and it showed highly hypersensitive to both ofloxacin and Cefotaxime Sodium.%晋中地区某海兰褐父母代种鸡场的孵化室突然发生孵化率下降10％,孵化出的19 800羽商品蛋雏鸡,在经14个养殖场饲养到5～ 12日龄时发生以下白色痢、糊肛为特征的疾病,死亡率达16.6％.经流行病学调查、临床诊断和实验室诊断,结果表明,引起该病的病原为沙门氏菌,它来源于种鸡饲料中的鱼粉原料,并对氧氟沙星和头孢噻肟高敏.
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