Avian pathogenic Escherichia coli (APEC) can cause a serious disease in ducks, characterized by perihepatitis,pericardit......

选用0日龄樱桃谷肉鸭90只,随机分为3组。试验组分别于0日龄和14日龄颈部皮下注射SSTR疫苗,正对照组和负对照组同期同部位分别注射......