What should be noted when mating sows?

When mating sows, note the following: First, the mating time should preferably be 2 hours after feeding. In hot summer weather, it should be done in the cool morning or evening. Second, the mating site should be relatively far from the boar house, with level ground. Third, the mating environment should be quiet; do not shout or whip the boar. Fourth, mating should be done indoors on rainy or snowy days. Fifth, after mating, gently press the sow's lower back with your hand to prevent the sow from arching her back and causing semen backflow. Sixth, after mating, the boar should not immediately be bathed, fed cold water, or lie down in a cold, damp place, so as to avoid catching a chill and getting sick.