GnRH treatment and double insemination for management of repeat breeding crossbred cows of Tarai region.

摘要

Crossbred repeat breeder cows (30) were divided into 2 equal groups and were inseminated according to the am-pm rule. Group 1 cows were treated with 10 mg GnRH analogue, buserelin (2.5 ml) i/m whereas group 2 cows received 2.5 ml NS i/m at the time of first AI. Second AI was repeated after 8 to 16 h of the first AI. Conception rate in the GnRH treated group (53.33%) was significantly higher than that in the NS treated control (13.33%).