The three key techniques of artificial insemination, explained thoroughly in one article

KeyTechniquesThree: Operational details after insemination is completed

After insemination is completed, continue massaging the sow for 1-10 minutes. The insemination catheter should not be pulled out immediately; let it remain in the sow's uterus for about 10 minutes, or wait for it to slide out naturally, to prevent semen backflow. However, it should not remain for too long either, to avoid damage to the uterus from the catheter. At this point, to prevent air from entering the sow's reproductive tract, fold the rear end of the catheter and insert it into the semen bottle.

After insemination, the sow enters the embryo implantation period. Severe stress should be prevented, the sow should be kept calm, and whipping or chasing the sow is strictly prohibited to avoid stress-induced early embryonic death.

Generally, within 30 days after mating, keep the sow in the gestation stall and do not move her between stalls arbitrarily, to reduce stress from high temperature and high humidity, immunization, and other factors. Do a good job of checking for return to estrus within 18-65 days after mating. Sows identified as open or returning to estrus only need to be promptly moved to group housing for re-mating or culling.

Embryo implantation is the critical period for ensuring conception. During this time, feed should not be given in too large an amount (70%-80% of the usual amount), and dietary energy and protein intake should be restricted. If there is too much heat, it will burn off some of the semen. At the same time, management should be done well, and the sow should not be given too much stress. When feeding the pigs, feed this group first. Regarding the use of vaccines, Farm B stated that it is best to wait until after the embryo implantation period has passed before vaccinating.

Temperature and humidity should be well controlled according to different breeds, and the pens should be kept dry. Do not wash the pens frequently, to avoid the floor being damp and too slippery, which could harm the sows.