AIM:To investigate the associations of interleukin-17(IL-17)genetic polymorphisms and serum levels with ulcerative colit......

试验用商品化鸡传染性法氏囊病三价活疫苗3倍、4倍和5倍剂量分别免疫10日龄法氏囊非免疫雏鸡，免疫后3d、7d、21d剖杀，观察法氏囊的变......