近亲交配与抗病力

JOURNAL OF BEE(2010)

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Abstract
20世纪80年代以来,我国的养蜂场和蜂群数量迅速发展,不久以后各地大面积地发生了多种蜂病,还有些是以前没见过的新蜂病,比较严重的如白垩病、爬蜂病等.不少有针对性的蜂药,效果非常有限,难以治愈,给我国的养蜂业造成了很大损失.养蜂者感到现在的蜜蜂抗病力很差,希望能选育出抗病力强的蜂种.
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