How can first-born sows give birth to more babies

If you want to increase the birth rate, you should pay attention to the following problems:

1. Keep sows in good condition, keep sows 70-80% fat, and don't make them overweight. Short-term preferential feeding 10-14 days before mating can increase the number of ovulation. The improvement of feeding level was as follows: more 2~2.7kg concentrate was fed on the basis of the original diet, and then decreased after breeding. For those with poor body mass, it is necessary to improve the level of feeding and promote multiple ovulation.

two。 Master the appropriate mating time: determine the first mating time according to the month age and body weight of the newborn sow, the first estrus is not mating, repeat estrus at an interval of 21 days, and then the number of ovulation increases. The mating age of each pig breed: the body weight of local sows should reach 60kg from 7 to 8 months old, the body weight of binary hybrid sows should reach 75~80kg at 8 months and 9 months, and the body weight of foreign breeds should reach 90~100kg at 10 months.