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Efficiency of Different Selection Indices for Desired Gain in Reproduction and Production Traits in Hariana Cattle
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Efficiency of Different Selection Indices for Desired Gain in Reproduction and Production Traits in Hariana Cattle
Kaushik, Ravinder; Khanna, A.S.;
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An investigation was conducted on 729 Hariana cows maintained at Government Livestock Farm, Hisar, from 1973 to 1999, with an objective to compare the efficiency of various selection indices for attaining desired genetic gains in the index traits. The various traits included were age at first calving (AFC), service period (SP), calving interval (CI), days to first service (DFS), number of services per conception (NSPC), lactation milk yield (LY), peak yield (PY), dry period (DP). Except for LY, PY and AFC the heritabilities of all other traits were low. Desirable associations among reproductive traits are supportive of the fact that any one of these traits incorporated in simultaneous selection is expected to cause correlated response in other traits. Production traits (LY and PY) were positively correlated, while DP had low negative genetic correlation with LY, and high genetic correlation with PY. Thus, DP can be taken as additional criteria in selection index for better over all improvement. Almost all production traits except DP had low negative correlation with AFC, SP, DFS and CI meaning that reduction in reproduction traits up to certain level may increase production performance. While, the correlation of NSPC with LY and PY was moderate positive. Among four trait indices I23: incorporating PY, AFC, SP and NSPC and among three trait indices I1: incorporating LY, AFC and SP were the best as these required least number of generations (4.87 and 1.35, respectively) to attain desired goals. Next in order of preference were PY or LY along with DP and SP as the best indices (I20 and I16) of which, index with PY may be preferred instead of LY as it produced considerably high correlated response in LY and reduction in NSPC as well.
Selection Indices;Desired Gain;Heritability;Phenotypic and Genetic Correlation;Production and Reproduction Traits;
 Cited by
Dalal, D. S. 1997. Prediction of breeding values of sires for economic traits in Hariana cattle. Ph. D. Thesis, C C S Haryana Agril. Univ., Hisar, India

Dhaka, S. S. 1997. Studies on genetic divergence and sire evaluation techniques in Zebu cattle. Ph. D. Thesis, C C S Haryana Agril. Univ., Hisar, India

Harvey, W. R. 1987. Mixed model least squares and maximum likelihood computer programme PC – 1 version. January 1987

Khanna, A. S. and U. C. Jaiswal. 1994. Efficiency of different selection indexes for desired gain by 'bending' of parameter estimates. Indian J. Anim. Sci. 64:378-383

Pesek, J. and R. J. Baker. 1969. Desired improvement to selection indexes. Canadian J. Plant Sci. 49:803-804 crossref(new window)

Pundir, R. K. and K. L. Raheja. 1994. Relationship between sires estimated breeding value for first lactation and lifetime traits in Sahiwal and Hariana cattle. Indian J. Anim. Sci. 64:1219-1225

Rana, M. S. 1985. Performance profile of efficiency attributes in some zebu herds. M.V.Sc. Thesis, C C S Haryana Agril. Univ., Hisar, India

Robertson, A. 1959. The sampling variance of the genetic correlation coefficient. Biometrics 15:469-485 crossref(new window)

Sharma, R. C. 1995. A study on selection indices based on different approaches for genetic improvement in buffaloes. Ph.D. Thesis, C C S Haryana Agri. Univ., Hisar, India

Singh, N. 1998. Index selection for genetic advancement in Sahiwal cattle. M.V.Sc. Thesis, CCS Haryana Agri. Univ., Hisar, India

Snedecor, G. W. and W. G. Cochran. 1968. Statistical Methods. 6th edition. Oxford & IBH pub. Co., New Delhi

Swiger, L. A., W. R. Harvey, D. O. Everson and K. E. Gregory. 1964. The variance of intra-class correlation involving groups with one observation. Biometrics 20:818-826 crossref(new window)

Yamada, Y., K. Yokouchi and A. Nishida. 1975. Selection index when genetic gains of individual traits are of primary concern. Japanese J. Genet. 50:33-41 crossref(new window)