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Breeding objectives for commercial silkworm lines in Iran

Published online by Cambridge University Press:  23 November 2017

S. Z. Mirhosseini ,
M. Ghanipoor  and
A. Shadparvar
S. Z. Mirhosseini*
Affiliation:
Department of Animal Sciences, Faculty of Agriculture, Guilan University, P. O. Box 3179, Rasht, Iran Guilan Research Center of Agriculture and Natural Resources, P. O. Box 41635-3394, Rasht, Iran
M. Ghanipoor
Affiliation:
Guilan Research Center of Agriculture and Natural Resources, P. O. Box 41635-3394, Rasht, Iran
A. Shadparvar
Affiliation:
Department of Animal Sciences, Faculty of Agriculture, Guilan University, P. O. Box 3179, Rasht, Iran
*
Email: [email protected]
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Extract

Animal breeding generally aims to obtain a new generation of animals that will produce desired products more efficiently under future farm economic and social circumstances than the present generation of animals (Groen, 2000). Definition of the breeding objective is generally regarded as the primary step in the development of structured breeding programmes (Ponzoni, 1988). Clearly defined breeding objectives are vital for effective genetic improvement of all livestock species. So, they stipulate the animal characteristics to be improved and the desired direction for genetic change. The breeding objective involves calculation of economic values for all biological traits that have an impact upon profitability. This study focuses on the derivation of a breeding objective based on a profit function for three commercial silkworm lines in Iran and effect of limitation in production system size on economic values.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 135
Copyright
Copyright © The British Society of Animal Science 2005

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References

Groen, A. F. 2000. Breeding goal definition. In: Galal, S., Boyazoglu, J., Hammond, K. (Eds.), Workshop on Developing Breeding Strategies for Lower Input Animal Production Environments, Bella, Italy, 22-25 September, 1999. pp. 25–104.Google Scholar
Ponzoni, R. W. 1988. The derivation of economic values combining income and expense in different ways: an example with Australian Merino sheep. J. Anim. Breed. Genet. 105: 143–153.CrossRefGoogle Scholar