不同雌、雄比例及饲养密度对七星瓢虫产卵量及孵化率的影响

LIU Ting, LIU Dong-yang, TIAN Shui-sheng, YU Jia-min, WANG Yong,JIANG Lian-qiang,GUO Shi-ping, LI Bin, WU Xing-long,XIAO Ke-jun, LIU Hong-ling,PU De-qiang

Hubei Agricultural Sciences(2023)

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Abstract
以豆蚜(Aphis craccivora K.)为饵料,研究相同饲养密度下,七星瓢虫(Coccinella septempunctata L.)不同雌、雄比例对其产卵量及孵化率的影响,并以3∶1作为优选出的雌、雄比例,研究1 000 mL容器内饲养不同密度七星瓢虫对其产卵量及孵化率的影响.结果表明,雌、雄比例为1∶1、2∶1和3∶1时七星瓢虫的产卵量显著高于雌、雄比例为4∶1和5∶1时七星瓢虫的产卵量;以3∶1为雌、雄比例,在1 000 mL的容器中,饲养9雌3雄时,产卵量显著高于饲养3雌1雄、6雌2雄、12雌4雄、15雌5雄;雌、雄比例及饲养密度对孵化率无显著影响.
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Key words
Coccinella septempunctata L.,artificial breeding,female-male ratio,feeding density,spawning volume,hatchability
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