volume 39 issue 2 (july to december 2005) : 107 - 110
PATH ANALYSIS FOR TOTAL DETERMINATION OF SELECTIVE VALUE IN SAHIWAL CATILE
1Dairy Cattle Breeding Division.
ND.R.I.. Kamal - 132001, India
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Indian Journal of Animal Research
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volume 39 issue 2 (july to december 2005) : 107 - 110
PATH ANALYSIS FOR TOTAL DETERMINATION OF SELECTIVE VALUE IN SAHIWAL CATILE
1Dairy Cattle Breeding Division.
ND.R.I.. Kamal - 132001, India
ABSTRACT
The path analysis of selective value for the period of 23 years (1980-2002) of Sahiwal cattle
maintained at National Dairy Research Institute, Kamal was carried out to find out the effect of
different causal factors. The path analysis of selective value showed that number of female calves
born (83.65%), number of calvings (30.77%), number of female calves lost (0.29%) and number of abnormal births (0.23%) contributed to the variability in number of female calves reached. Among the total effect of number of calvings (30.77%), it was mainly contributed by its indirect effect through number of female calves born. Number of female calves born contributed by its direct effect mostly. Regarding number of female calves lost, its direct effect was high but the total effect becoming less due to its indirect effect through number of female calves born. These variables completely explained the total variations in number of female calves reached AFC.
maintained at National Dairy Research Institute, Kamal was carried out to find out the effect of
different causal factors. The path analysis of selective value showed that number of female calves
born (83.65%), number of calvings (30.77%), number of female calves lost (0.29%) and number of abnormal births (0.23%) contributed to the variability in number of female calves reached. Among the total effect of number of calvings (30.77%), it was mainly contributed by its indirect effect through number of female calves born. Number of female calves born contributed by its direct effect mostly. Regarding number of female calves lost, its direct effect was high but the total effect becoming less due to its indirect effect through number of female calves born. These variables completely explained the total variations in number of female calves reached AFC.
KEYWORDS
REFERENCES
- Banik, S. (2001). M.Sc. Thesis, N.D.R.I. (Deemed University), Kamal.
- Rawal, S.C. and Tomar, 5.5. (1994). Indian..T. Dairy Sci., 41: 455-458.
- Reddy, K.M. and Nagarcenkar, R. (1989). Indian J. Dairy Sci., 42: 280-288.
- Snedecor, GW. and Cochran, W.G. (1967). Statistical Methods. Oxford and IBH Publication Co. Calcutta, Bombay, New Delhi.
- Tomar, 5.5. (2000). Methodology and use of path analysis in quantitative genetics. Compendium of Lectures.
- National Training Programme on Applied Statistical Methodology with Computer Orientation in Animal Breeding, February 10 to March 1,2000. Dairy Cattle Breeding Division, NDRI, Kamal, India.
- Wright, S. (1921). J. Agril. Res., 20: 357-385. %'
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In this Article
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Published In
Indian Journal of Animal Research