Effect of shipping distance of semen during the dispersed insemination on semen quality and conception rate in the sheep
In order to accelerate the promotion of artificial insemination in the sheep production in proper scale and in courtyard farming households,56 centralized farming households(raising 2 000 ewes)in Changji Autonomous Prefecture were chosen for the experiment.The rams were collected in a centralized manner,and the fresh semen diluted with 2.5×concentrated bovine semen diluent and shipped over a long distance(more than 200 km).Ewes treated with estrus synchronization and timed insemination procedure during dispersed insemination.The effects of shipping distance of diluted and fresh semen on semen quality and conception rate were investigated.The results showed that shipping distance of 80～300 km and shipping time of 1～4 hours had no significant effect on semen quality and conception rate.
NETL
NSTL
万方数据
