How to confirm ovulation in sows? A detailed guide to practical judgment methods

Before a sow ovulates, she opens her cervix and releases the waste from inside the uterus; at this point you will see some sticky matter like nasal mucus. When the uterine waste is fully discharged and the vulva is relatively clean with only a thin fluid remaining, she has entered the ovulation period. You can also determine her ovulation time by the sow's estrus. So, how can you promote ovulation in sows?

1. How can you promote ovulation in sows?

1. Strengthen the feeding management of sows. Be careful to feed appropriate amounts of fish meal, blood meal, soybean cake, bone meal, carrots, pumpkins and other feeds rich in protein, minerals and vitamins, and the effect will be even better. If ==Suqing San== is fed properly, lactating sows generally come into estrus 3~5 days after weaning and can ovulate and be mated normally.

2. For empty sows that are too fat, reduce feed to lower body condition. During feeding, measures to reduce feed and lower body condition should be taken for empty sows that are too fat. This is because in any season, a sow that is too fat often cannot come into estrus and ovulate normally. For sows used for breeding, it is advisable to maintain a breeding body condition that is neither fat nor thin.

3. Artificial induction of estrus. To promote normal estrus and ovulation in sows that do not come into estrus and sows that fail to conceive after repeated mating, artificial estrus induction measures can be used, such as the boar exposure method, the method of controlling suckling time to induce estrus, the method of merging litters, early weaning of piglets, udder massage, and the use of hormones to induce estrus, all of which can achieve fairly good estrus induction results.