1 Adjust the herd structure and increase the proportion of breeding female donkeys so that the proportion of breeding female donkeys in the herd reaches 50% to 70%. 2 Reasonable layout, establishment of a donkey breeding site, implementation of artificial insemination, so that as many female donkeys participate in breeding. 3 increase rejuvenation, promote estrus. Insufficient fodder, monoculture of old forage grass is not full price, especially the lack of protein and vitamins, is the main reason for raising the female donkey without estrus. To this end, the female donkey must increase the fine material one month before mating; participate in labor to extend the female donkey's intake time, and reduce the amount of exercise for the poorly bred, and increase the green and juicy feed. 4 Take the method of concentrated trial and breeding. In the season of breeding, the village is the unit of time to conduct routine trials on the female donkey. If the female donkey is found to be estrus, it is necessary to dedicate the breeding station immediately.
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