数字农科院2.0

Effect Of Dietary Selenium Supplementation On Growth And Reproduction Of Silkworm Bombyx Mori L.

文献类型： 外文期刊

作者： Thakur, Kiran;Tang, Shun-Ming;Hu, Fei;Wei, Zhao-Jun;Jiang, Li;Peng, Li-Li;Cao, Yu-Yao;Tang, Shun-Ming

作者机构：

关键词： Selenium; Bombyx Mori L; Growth; Cocoon Quality; Reproduction

期刊名称： BIOLOGICAL TRACE ELEMENT RESEARCH

ISSN： 0163-4984

年卷期： 2020 年 193 卷 1 期

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摘要： The effects of selenium (Se) on the growth and reproduction of the Lepidoptera insect, the silkworm, Bombyx mori L were investigated. Initially, the silkworms were divided into eight groups (150 larvae/group) on the basis of feeding with mulberry leaves saturated with different concentrations of Se (25, 50, 100, 125, 150, 175, and 200 mu M) and control from the first day of the fourth instar larvae. After feeding, growth and reproductive performance of B. mori L. were investigated with standard techniques used in sericulture. After the data analysis, 50 mu M of Se was recognized as the optimal level which positively influenced the growth and production, with prolonged stage of larvae, increased larval, cocoon, and pupal weights, and enhanced number of eggs laid by the female moth as compared to the control group. On the contrary, 200 mu M of Se treatment displayed toxic to silkworm and induced significant decrease in the growth, cocoon production, and reproduction. The weight of the cocoon shell, the cocoon shell ratio, number of eggs produced, and fertilization ratio in all the Se-treated groups were lower than the control group. The present study indicated that lower levels of (50 mu M) of Se can promote the larval and pupal growth of the B. mori L. resulting in the higher yield of cocoon crop and significantly influencing the fecundity, while high concentration was toxic to silkworm. Our data supply the novel application of Se which could be highly beneficial to sericulture farmers.

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