Indian Journal of Animal Research

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Indian Journal of Animal Research, volume 34 issue 1 (january to june 2000) : 29-32

GENETIC AND NON-GENETIC FACTORS AFFECTING ABNORMAL BIRTHS IN KARAN SWISS CATTLE

K. Mukherjee·, 5.5. Tomar
1Division of Dairy Cattle Breeding National Dairy Research Institute, Kamal -132 001, India

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Cite article:- Mukherjee· K., Tomar 5.5. (2024). GENETIC AND NON-GENETIC FACTORS AFFECTING ABNORMAL BIRTHS IN KARAN SWISS CATTLE. Indian Journal of Animal Research. 34(1): 29-32. doi: .

ABSTRACT

Based on 4696 calving records of 1399 Karan Swiss cows, the incidence of abnormal birth was found to be 5.4%. The genetic group of cows, period, season and parity of calving had highly significant effect on the rate of abnormal births. The effect of sire was also significant. About 15% of the total cows had abnormal births during their stay in the herd and most of them (14%) aborted only once. The estimate of heritability and repeatability of the trait were found to be very low.

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