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Study on genetic-economic responses to index selection in commercial silkworm lines

Published online by Cambridge University Press:  23 November 2017

S Z Mirhosseini ,
M Ghanipoor ,
A Shadparvar  and
A R Seidavi
S Z Mirhosseini*
Affiliation:
Guilan University, Department of Animal Sciences, Rasht, Guilan, Iran
M Ghanipoor
Affiliation:
Iran’s Silkworm Research Center, Rasht, Guilan, Iran
A Shadparvar
Affiliation:
Guilan University, Department of Animal Sciences, Rasht, Guilan, Iran
A R Seidavi
Affiliation:
Islamic Azad University, Branch of Science & Research, Tehran, Iran
*
E-mail: smirhosin@yahoo.com
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Extract

The primary goal of silkworm breeding programs is gathering the desirable genes in appropriate combinations for improving genetic performance to maximize the yield and productivity per animal (Kang et al., 2003). The general aim of selection in animal breeding is to acquire new generation of animals, which under future economic conditions of production system are more efficient than the present generation. In multiple-trait selection by means of selection index method, it is necessary to evaluate economic values of traits. In this method, genetic trend of important traits is directed based on their weights in economic efficiency of production system to acquire maximum improvement in economic merit (Mirhosseini et al., 2005). The objective of this study was to estimate genetic parameters, additive genetic values and economic values of cocoon traits to design selection index program and evaluate genetic-economic responses to index selection.

Type
Poster presentations
Information
Proceedings of the British Society of Animal Science , Volume 2006 , March 2006 , pp. 104
Copyright
Copyright © 2016 The American Society of International Law

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References

Kang, P. D., Sohn, B. H., Lee, S. U., Woo, S. O. and Hong, S. J. 2003. Breeding of a new silkworm variety, Chugangjam, with a sex-limited larval marking and high silk yielding for summer-autumn rearing season. International Journal of Industrial Entomology 6: 57-61.Google Scholar
Mirhosseini, S. Z., Ghanipoor, M., Shadparvar, A. and Etebari, K. 2005. Selection indices for cocoon traits in six commercial silkworm (Bombyx mori L.) lines. The Philippine Agricultural Scientist 88: 328-336.Google Scholar