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Indian Journal of Animal Research, volume 43 issue 1 (march 2009) : 75-76

PERFORMANCE OF SAHIWAL AND ITS JERSEY CROSSES FOR REPRODUCTIVE TRAITS IN DIFFERENT LACTATIONS

M.R. Hadge, S.V. Kuralkar, S.Z. Ali, K.P. Kharkar

Affiliations

¹Department of Animal Genetics and Breeding, Post Graduate Institute of Veterinary and Animal Sciences, Akola-444 104, India

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Cite article:- Hadge M.R., Kuralkar S.V., Ali S.Z., Kharkar K.P. (2024). PERFORMANCE OF SAHIWAL AND ITS JERSEY CROSSES FOR REPRODUCTIVE TRAITS IN DIFFERENT LACTATIONS. Indian Journal of Animal Research. 43(1): 75-76. doi: .

ABSTRACT

The data on the 267 lactation records including 192 records of Sahiwal cows and 75 records of
Sahiwal x Jersey crossbred cows maintained at Bull Mother Farm, Wadsa dist. Gadchiroli (M. S.)
from 1989 – 2007 on basis of first, second and third more than three lactation were considered for
study. The mean age at first calving in Sahiwal cows and Sahiwal x Jersey crossbred cows were
1241.36 + 24.81 and 984.93 + 33.13 days respectively. Decreasing trend of service period and
calving interval occurs with increasing lactation number in Sahiwal and Sahiwal x Jersey crossbred.
High repeatability estimates of the studied traits indicated the possibility of selecting cows based
on first lactation.

KEYWORDS

REFERENCES

Bhatnagar, D.S. et al . (1983) Indian J. Dairy Sci. 36(4):402-406.
Chopra, R.C. et al. (1973) Indian J. Dairy Sci. 26(4):263-269.
Harvey, W.R. (1990). Least Square Analysis of Data with Unequal Subclass Numbers. ARS. USDA, USA.
Kuralkar S.V. et al. (1996) Indian Vet. J. 73:234-236.
Mukherjee, D.P. and Banerjee G.C. (1980) Genetics and Breeding of Farm Animals. Oxford and IBHPublishers Co. Bombay.
Singh, V.P. et al. (1990) Indian J. Anim. Sci. 46(1):5-8

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PERFORMANCE OF SAHIWAL AND ITS JERSEY CROSSES FOR REPRODUCTIVE TRAITS IN DIFFERENT LACTATIONS

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