International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Efficacy of Selenium on Silkworm (Bombyx mori L.) Cocoon Characters

  • Smitha S. (Department of Sericulture, Sri Krishnadevaraya University) ;
  • Kumar K. Anil (Department of Sericulture, Sri Krishnadevaraya University) ;
  • Rao, A. Vijaya Bhaskara (Department of Sericulture, Sri Krishnadevaraya University)
  • Published : 2006.12.31
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Abstract

As the Selenium is known to be growth promoter in sheep and cattle, the efficacy of selenium has been tested in silkworm Bombyx mori L. The V instar larvae were fed with lethal and sub-lethal doses of selenium treated leaves. The larvae fed with lethal dose showed a significant decrease in growth and Cocoon commercial characters. The treatment with sub lethal dose exhibited a significant increase in the growth of the silkworm. Correspondingly, the cocoon commercial characters on exposure to the lethal dose showed significant decrease and sub lethal dose showed a significant increase. In the light of similar findings reported earlier in other cocoon crops and vertebrates, it can be inferred that selenium at lower doses acts as a growth stimulator, resulting in the higher yield of cocoon crop.

Keywords

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