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mi feng luo yuan ti bing de fang zhi
Author(s): 
Pages: 26
Year: Issue:  10
Journal: Rural Animal-Production Technology

Keyword:  GetLinkList(KeywordFilter('螺原体:8739蜜蜂:3482消化道:1637发病高峰期:1278孢子虫病:1230飞翔能力:1226抗病力:1205抗生素类:1070原核生物:902综合防治措施:862')'kw''CJFQ');
Abstract: <正> (一)病原 蜜蜂螺原体是一种呈螺旋状,无细胞壁的原核生物,菌体直径0.17微米。 (二)症状 患病蜜蜂爬出箱外,在地面上蹦跳、爬行,失去飞翔能力,三五只蜜蜂集聚在一起,行动缓慢,不久死亡。死蜂大多双翅展开,吻伸出,发病严重时,不仅青壮年蜂死亡,而且刚出生不久幼年蜂也爬出箱外死亡,蜂群群势下降危害更大,患病蜜蜂消化道不尽相同,有的中肠膨大呈灰白色,有的缩小呈褐
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