What if the sow who is more than five months old refuses to mate?

The reason for refusal to mate may be that the sow's estrous period is short, has entered the late estrous period when the sow's sexual desire is reduced, or has already mated. Therefore, we must always pay attention to every move of sows, find out the estrous sows in time, and breed them at the right time.

There are four proverbs for sows in rural China: ① vulva stained with grass, insemination is just right;② look stunned, insemination is pregnant;③ stand still, just breeding;④ mucus thickened, it is the heat