volume 37 issue 2 (july to december 2003) : 153 -154
A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~
1Indian Agricultural Statistics Research Institute
New Delhi - 110012. India
Published In
Indian Journal of Animal Research
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volume 37 issue 2 (july to december 2003) : 153 -154
A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~
1Indian Agricultural Statistics Research Institute
New Delhi - 110012. India
ABSTRACT
Age at 1st calving, lactation yield and lactation length are important characters in dairy cattle. Different methods such as ANOVA, ML, REML, MIVQUE are used to estimate variance components and in turn, heritability which is one of the most important genetic parameter for selection of sires for breeding purpose. In this paper, heritabilities of age at 1st calving, lactation yield and lactation length in Kankrej breed have been estimated using the above 4 methods and estimates so obtained are compared.
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REFERENCES
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- Patterson, H.D. and Thompson, R. (1971). Biometrika, 58: 545-554.
- Rao, C.R. (1971). J. Multivariate Analysis, 1: 445-456.
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In this Article
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Published In
Indian Journal of Animal Research