A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~

Article Id: ARCC3410 | Page : 153 -154
Citation :- A NOTE ON ESTIMATION OF HERITABILITIES OF DIFFERENT DAIR~ CHARACTERISTICS OF KANKREJ BREED BY DIFFERENT METHOD~.Indian Journal Of Animal Research.2003.(37):153 -154
A.K. Paul, Indra Singh and V.K. Bhatia
Address : Indian 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.

Keywords

References

  1. Harville, D.A. (1977). J. Am. Stat. Asso., 72: 310-340.
  2. Henderson, C.R. (19531. Biometrics, 9: 226-252.
  3. Meyer, K. (1986). Proc, Third World Congress on Genetics AppUedto Livestock Production. Madrid, 12: 454-459.
  4. Patterson, H.D. and Thompson, R. (1971). Biometrika, 58: 545-554.
  5. Rao, C.R. (1971). J. Multivariate Analysis, 1: 445-456.

Global Footprints