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Indian Journal of Animal Research, 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~

A.K. Paul, Indra Singh, V.K. Bhatia

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¹Indian Agricultural Statistics Research Institute New Delhi - 110012. India

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Cite article:- Paul A.K., Singh Indra, Bhatia V.K. (2024). A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~. Indian Journal of Animal Research. 37(2): 153 -154. doi: .

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

Harville, D.A. (1977). J. Am. Stat. Asso., 72: 310-340.
Henderson, C.R. (19531. Biometrics, 9: 226-252.
Meyer, K. (1986). Proc, Third World Congress on Genetics AppUedto Livestock Production. Madrid, 12: 454-459.
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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A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~

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