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ying yong elisa jian jie fa zhen duan niu chuan ran xing bi qi guan yan
Author(s): 
Pages: 43-44
Year: Issue:  2
Journal: China Yak

Abstract: <正> 牛传染性鼻气管炎(IBR)是由疱疹病毒引起的一种急性、热性、呼吸道接触性传染病。临床上以发热和呼吸困难为特征,并呈现鼻炎、窦炎、喉炎、气管炎和乳房炎的病理变化。同时,病牛的生殖器官、胎儿、结合膜和脑也发生一定的感染。由于病牛的生长发育受阻、产奶量下降、生殖能力减退与不育,故本病对养牛业的发展影响较大。另外,多数病牛呈隐性感染,故在临床上较难确诊。自然感染以6月龄以上的牛为
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