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Feeding Effects of Bush, Low Cut and Tree Mulberry Leaves on Silk Gland Protein Content of Silkworm, Bombyxmori L.

M. A. Qader
Senior Research Officer
Bangladesh Sericulture Research and Training Institute, (BSRTI), Rajshahi.

N.Naser
Professor
Department of Biochemistry, Rajshahi University.

S. Islam
Research Officer
Bangladesh Sericulture Research and Training Institute, (BSRTI), Rajshahi.

A.C. Barman
Director (In Charge)
Bangladesh Sericulture Research and Training Institute (BSRTI), Rajshahi.

Abstract/ Executive Summary:

Protein contents of posterior and middle silkgland of Bombyx mart were estimated in prespinning stage fed with mulberry leaves under different cultivation forms. Higher fibroin protein (73.47%) content was found in the posterior silkgland of Urboshi race fed with tree leaves, while maximum amount of sericin protein (68.86%) was obtained in the middle silkgland of Nistari fed with bush leaves. Seasonal variations were also found significant in respect of fibroin and sericin protein content in posterior and middle silkglands respectively.

Keywords: Cultivation forms. Feeding effects, Silkglancl protein, Bombyx morL

Location: Bangladesh Sericulture Research and Training Institute ( BSRTI)

Start Date:

End Date:

Program Area: Development of Host and Medicinal Plants

Commodity: Mulberry

Objectives:

To study the feeding effects of mulberry on silkgland protein under different cultivation forms to screen out types of mulberry leaves for quality and quantity silk production.

Methodology:

Eggs of two multivoltine silkworm strains namely Urboshl and Nistarl were brushed and reared with fresh mulberry leaves up to 2nd instar. The third instar larvae were taken at random and distributed in different groups for each variety and were fed with bush, lowcut and tree mulberry leaves of cultivar BM-1, BM-3 and Telia respectively during the whole larval period. Each group consisted of one hundred larvae with three replications. The experiment was conducted in three different seasons like as Chaita (February - March), Jaishta (April - May) and Bhaduri (August - September) designated as S1, S2 and S3 respectively. The larvae were reared on an identical conditions of light, temperature (25 ± 1°C) and humidity (70 -80%) during the rearing period. Twenty mature (prespinning) larvae were taken at random from each replication of all treatments and dissected the posterior and middle silkglands separately.

Source of Information: Bulletin of Sericulture Research. 1996 Vol.7: 39-43 published by Bangladesh Sericulture Research and Training Institute.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Leaf quality of mulberry especially protein content ofleaves under different cultivation forms greatly influenced the protein content of silk gland of silkworm, Bombyx mori L.

Knowledge Management: Journal