不同感染时期和感染量对家蚕微粒子病胚种传染率的影响  

Effects of Different Infection Period and Dosage on the Ratio of Germination Transmission of Nosema bombycis

作　　者：徐杰[1] 陈灵方[2] 林宝义[3] 鲁兴萌[1] 

机构地区：[1]浙江大学动物科学学院,浙江杭州310029 [2]浙江省农业厅蚕种科技服务中心,浙江杭州310020 [3]浙江省农业厅经作局,浙江杭州310020

出　　处：《蚕桑通报》2004年第1期18-21,共4页Bulletin of Sericulture

摘　　要：胚种传染率是家蚕成品卵检验方案设计的基础,为此本试验调查了家蚕微粒子虫不同感染时期和感染剂量对白玉和秋丰胚种传染率的影响。结果表明:在5龄期感染时期越早胚种传染率越高;个体间的抵抗性对不同剂量的感染所造成的胚种传染率有较大的影响;白玉和秋丰的平均胚种传染率分别为28.5%和30.4%。The ratio of germination transmission of Nosema bombycis was the basic of silkworm seed inspection.The effects of different infection period and dose on ratio of germination transmission of Nosema bombycis for Baiyu and Qiufeng were tested.The results suggested that the transovarial transmission was significantly decreased(P∠0.01)as the infection time was prolonged during5th instar in both the races.The individual resistance of the silkworm in a race to Nosema bombycis has great influence on the transovarial transmission rate,where the average rate in Baiyu and Qiufeng race were18.5%and30.4%respectively.

关 键 词：感染时期 感染量 家蚕 微粒子病 胚种 传染率 成品卵检验 

分 类 号：S884.21[农业科学—特种经济动物饲养]