免疫后鸡群发病的原因
China Animal Health（2011）
Abstract
<正>在实际养殖过程中,养殖户经常遇到免疫疫苗后鸡群发病的现象,究其原因,归纳起来主要有以下几个方面:一、疫苗原因1.疫苗在运输、贮存过程中,难免没有保持恒定而适宜的温度(冻干苗-15℃保存,油苗2℃-8℃
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