Performance of Murrah buffaloes at coastal region of Tamil Nadu.

摘要

The study was conducted to determine the performance of Murrah buffaloes purchased from its breeding tract at the coastal region of Tamil Nadu, India in order to assess its genotype x environment interaction in production traits. It was observed that period and season of calving had significant effect on the variations of peak yield, 305-day milk yield, lactation milk yield, milk yield/day of lactation and milk yield/day of calving interval. Winter calvers had higher 305-day and lactation milk yields than monsoon calvers and they differed significantly. Parity had a highly significant effect on all the traits studied, except lactation length. The highest peak yield, 305-day milk yield, lactation milk yield and milk yield per day of lactation was observed in second parity calving animals. It is suggested that Murrah buffaloes from its breeding tract and reared at the coastal region of Tamil Nadu, India are comparable with those maintained under other government and institutional herds in India and indicates that there is no appreciable genotype x environment interaction.