1970•University Journal of Zoology Rajshahi UniversityOpen access

Effects of methionine and tryptophan on some quantitative traits of silkworm, Bombyx mori L. (Lepidoptera : Bombycidae)

Rezina Laz

Abstract

The present experiment was carried out to determine the effects of methionine andtryptophan on some quantitative traits of silkworm, Bombyx mori L. Mulberry leaves were treatedwith 250,500,750 and 1000 ppm of amino acids and were provided to the worms as food.Compared to the controls amino acids (especially 500 and 750 ppm) significantly increased thefecundity, fertility, adult emergence, developmental periods and longevity of B. mori adults butdecreased the mortality.Key words: Amino acids; Bombyx mori; fecundity; mortality; longevity.DOI: 10.3329/ujzru.v28i0.5280Univ. j. zool. Rajshahi Univ. Vol. 28, 2010 pp. 15-19

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Key concepts: Bombyx mori, Fecundity, Bombycidae, Methionine, Lepidoptera genitalia, Longevity, Biology, Tryptophan