Abstract
The present study was carried out to estimate the seasonal variation of calving in Murrah buffaloes. The study was conducted in North West alluvial plain of Bihar (Chappra, Siwan and Samastipur), of India on 773 Murrah buffaloes, and these buffaloes were inseminated during June 2010 to December 2014 at BAIF's field Artificial Insemination centres which provide door-step artificial insemination service at village's level. The result indicated that the calving of Murrah buffaloes occurred throughout the year. In Chhapra maximum calving observed in August, i.e. 17% while 14% in October. September and November 13% each. Based on season majority of calving observed between July to January. In Samastipur maximum calving observed in August 16% while in September 14 % followed by November 13% and October month 11%. Based on season majority of calving observed between July to January months. In Samastipur maximum calving observed in August 16% while in September 14% followed by November 13% and October 11%. Based on season majority of calving found between July to January months. It could be concluded that Murrah buffaloes tend to calve more in the days with shorter photoperiod as compared to days with more extended photoperiod.
Highlights
INTRODUCTIONThe Murrah breed is the essential genetic material of milk producing buffalo in India breed has been used extensively used throughout India to upgrade the nondescript buffalo stock to improve the milk production
The Murrah breed is the essential genetic material of milk producing buffalo in India breed has been used extensively used throughout India to upgrade the nondescript buffalo stock to improve the milk production.Buffalo is tending seasonal pattern of breeding in India, while cattle show perennial breeding and calving pattern.The breeding pattern of buffaloes characterized by significant seasonal variation
Based on season majority of calving observed between July to January
Summary
The Murrah breed is the essential genetic material of milk producing buffalo in India breed has been used extensively used throughout India to upgrade the nondescript buffalo stock to improve the milk production. The breeding pattern of buffaloes characterized by significant seasonal variation. This variation in breeding efficiency of buffaloes termed as seasonality of buffalo breeding. This seasonal variation in reproduction affects the reproductive traits like age at first calving, dry period and calving interval and the economics of milk production. The peak of calving observed during the winter season. Various workers have observed that very few buffaloes come in heat during a hotter period of a year. This condition is due to high environmental temperature, humidity or both during summer or rainy months. Minimal information is available on the seasonal trend in the calving of the buffaloes from Bihar state, so the objective of the study was to document the calving pattern of Murrah buffaloes in the Bihar
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