PATH COEFFICIENT ANALYSIS OF FIRST LACTATION MILK YIELD IN FRIESWAL COWS OF ASSAM
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Abstract
ABSTRACT
Records of 729 Frieswal cows of Assam were utilized for the present study. The
correlations of the FLMY with AFC, FLL, FDP and FCI were partitioned into direct and indirect
effects. The numerical values of the coefficients assigned to each of the path showed
maximum direct effect of FLL (0.645) on FLMY followed by that of FCI (0.548). The direct
effects of AFC and FDP were found to be low (0.034 and – 0.132 respectively). The FLL had
maximum total effects (0.662) on FLMY followed by FCI (0.238).
Key words: Path coefficient, First lactation milk yield, Frieswal, Assam
References
REFERENCES
Becker, W.A. 1984. Manual of quantitative
genetics. 4th edn., Academic Enterprises,
Washington State University, Washington.
Harvey, W. 1990. Guide for mixed model
least-squares analysis of data and maximum
likelihood computer programmes (PC-
version), Ohio State University, USA.
Laskar, S. and Roy, T.C. 2007. Path –
coefficient analysis of first lactation milk yield
in Jersey cows. Indian Vet. J., 84: 482-483.
Sharma, A.P.; Khan, F.H. and Jadhav, S.K.
Genetic study of first lactation yield in
Sahiwal cows. Indian Vet. J., 64: 770-774.
Singh, R.K. and Chaudhary, B.D. 2004.
Biometrical methods in quantitative genetic
analysis. Revised Edn. Kalyani Publishers,
Ludhiana.
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