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

Article Id: ARCC1567 | Page : 75-76
Citation :- PERFORMANCE OF SAHIWAL AND ITS JERSEY CROSSES FOR REPRODUCTIVE TRAITS IN DIFFERENT LACTATIONS.Indian Journal Of Animal Research.2009.(43):75-76
M.R. Hadge, S.V. Kuralkar, S.Z. Ali and K.P. Kharkar
Address : Department of Animal Genetics and Breeding, Post Graduate Institute of Veterinary and Animal Sciences, Akola-444 104, India

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

Sahiwal × Jersey crossbred cows Lactations Reproductive traits.

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