The best way to identify estrus in sows is when the sow is calm for half an hour after feeding (because it conflicts with the feeding time, it is mainly used to identify difficult sows), estrus identification is performed twice a day, once in the afternoon and one in the afternoon. Check the method of using artificial intelligence and boar trials. One-third of all working hours of the cultivator should be placed on the estrus estrus identification. The estrus performance of sows is: (1) Inflammation of the vulva, mucus secretions in the vagina; (2) walking around in the circle, frequent urination; (3) Neuroticism, poor appetite; (4) Pressing and standing still; (5) Climb each other and accept the boar cross. There are also estrus is not obvious, the most effective method of heat detection is to use the trial boars to treat the sow Sterile Cotton Balls,Absorbent Cotton Ball,Medical Cotton Balls,Disposable Absorbent Cotton Balls Henan Anbang Medical Supplies Co., Ltd. , https://www.anbangmedical.com