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American Journal of Biochemistry and Molecular Biology

Year: 2013 | Volume: 3 | Issue: 1 | Page No.: 167-174
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Authors

D. Kumar

J.P. Pandey

A.K. Sinha

S. Salaj

P.K. Mishra

B.C. Prasad

Keywords

Research Article

Evaluation of Novel Tasar Silkworm Feed for Antheraea mylitta: It’s Impact on Rearing, Cocoon Trait and Biomolecular Profile

D. Kumar, J.P. Pandey, A.K. Sinha, S. Salaj, P.K. Mishra and B.C. Prasad
The Antheraea mylitta produces tasar silk having massive demand in international market. Its rearing is carried out in outdoor conditions and during course of I to III instar rearing, a major proportion (20-30%) of larvae die due to vagaries of nature, pests and predators etc. which considerably affects the production and productivity. The solution to this major bottleneck of the silkworm rearing lies in evolving a suitable tasar silkworm feed (semi-synthetic diet) for young age tasar silkworm. In present study, comparative evaluation was done among semi-synthetic diet fed; fresh leaf fed indoor reared and fresh leaf fed in natural outdoor reared insects. Data revealed that young age survival and Effective Rate of Rearing (ERR) were higher when larvae were brushed on semi-synthetic diet in contrast to indoor rearing on fresh leaf and complete outdoor rearing. Semi-synthetic diet fed larvae showed greater body weight and their cocoon showed higher weight, shell weight and shell ratio than controls. Concentration of hemolymph protein was slightly higher in semi-synthetic diet fed than outdoor reared larvae whereas, significantly lower in case of indoor reared. Hemolymph protein SDS-PAGE analysis indicates that, the semi-synthetic diet fed larvae is closer to complete outdoor reared larvae than indoor reared. Comparative assessment of rearing, cocoon trait and biomolecular profile of A. mylitta it is assumed that tasar feed developed by our laboratory is novel. It will be helpful in minimizing impact of unfavorable condition during I crop rearing and maintenance of precious eco-races stocks to enhance productivity of tasar silk.
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Comments

nk bhatia Reply

It is a good atempt. But This can not commercialised in India, which is the maiden country in the world that produces tasar. This experiment carry only academic vallue. But it is good.

Dr Dinesh Kumar

It is possible and under process of commercialization in india.DOS, Jharkhand is taken large scale trial 7200 DFLs, PRADAN also initiated. NRDC also step forward for this product. Cost of Diet is less and production of cocoons increases 40-50% which will be helpful to tasar rearers and seed producer of DOS during first rearing crop. Thanks for comments.

NK Bhatia

Results are the very encouraging then. It will open new opportunities world over, and A. mylitta may be globalized now. If we cut the out door losses during the course of rearing, A. mylitta will get more respect from all the community world over. If you kindly mail me the full paper, I will be highly thankful to you.

NK Bhatia Reply

Results are the very encouraging then. It will open new opportunities world over, and A. mylitta may be globalized now. If we cut the out door losses during the course of rearing, A. mylitta will get more respect from all the community world over. If you kindly mail me the full paper, I will be highly thankful to you.

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