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

Article Id: ARCC3508 | Page : 29-32
Citation :- GENETIC AND NON-GENETIC FACTORS AFFECTING ABNORMAL BIRTHS IN KARAN SWISS CATTLE.Indian Journal Of Animal Research.2000.(34):29-32
K. Mukherjee· and 5.5. Tomar
Address : Division of Dairy Cattle Breeding National Dairy Research Institute, Kamal -132 001, India

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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