鸡新城疫和肿头型大肠杆菌病并发症的诊治

cnki(2005)

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Abstract
<正> 鸡新城疫是由副粘病毒引起的急性高度接触性禽类传染病。春季易发,表现为产蛋率下降,呼吸道感染,肿头、闭眼、流泪和腹泻等症状,可引起少量死亡。1 发病情况今年4月中旬,河北省张家口市阳原县揣骨疃镇养殖场一批4000只240日龄的鸡群发病,死亡5只,前来我局专家门诊就诊。2 临床症状
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