Productive and Reproductive Performance of Different Crossbred Dairy Cattle at Kishoreganj, Bangladesh

The study was conducted at Kishoreganj, Bangladesh to evaluate the productive and reproductive performance of Sahiwal Local (SL L), Friesian Local (FL), Sindhi Local (SL) crossbred during the period of July 2019 to January 2020. A total of 162 crossbred dairy cows under 3 genotypes were studied on the basis of productive and reproductive performances. The average age of puberty of LF, LSL and LS crossbred cattle were 23.7, 26.5 and 29.5 months, respectively. The average age at first fertile service for LF, LSL and LS crossbreds' cattle were 24.2, 27.0 and 31.0 months, respectively. The highest gestation length was 285 days and it was for LS crossbred cattle. The lowest gestation length was 273 days and it was for LF crossbred cattle. The highest lactation length was observed in case of LF crossbred (300 days) and lowest was found in case of LS crossbred (220 days). The highest number of services per conception was 1.66 and it was for LSL crossbred cattle. The lowest number of services per conception was 1.61 and it was for LF crossbred cattle. The average post-partum heat period of LF, LSL and LS crossbreds were 114, 125 and 127days, respectively. The highest Post-Partum Heat Period (PPHP) was 127 days found in case of LS crossbred cows. The lowest PPHP was found in case of LF crossbred cows (114 days). The overall productive and reproductive performance of different crossbred were varied. Judging from the overall analysis of the results, it may be concluded that production and reproduction performances of Holstein crossbred are superior to other dairy crossbred in Kishoreganj, Bangladesh.