No need to worry if a sow does not come into heat; here are practical solutions to share

The vast majority of sows will come into heat normally after weaning. If she does not come into heat: on the one hand, she may have already come into heat and you did not notice in time; on the other hand, the stimulation given to the sow after weaning was not enough.

For the first case, some people may find it unbelievable: how could a sow that is still nursing possibly come into heat?

The fact is that sows that have been nursing for more than 30 days are very likely to come into heat, especially sows serving as nurse sows, which are even more likely to come into heat in the farrowing house. At this time, our negligence may cause us to miss the sow's estrus and mating. This situation usually has warning signs, such as the sow being unwilling to nurse, eating less, being restless, and frequently standing and pricking up her ears. We often think the sow is sick, but when we take her temperature it is normal instead, and for a moment we are completely at a loss.

The second case is the reason why the vast majority of sows do not come into heat.

For this, we may as well start with the following points:

7. Increase the intensity and frequency of estrus checks. Artificially stimulate the sow and check for estrus at least twice a day. Use your hands or knees to stimulate both sides of the abdomen, push and lift the groin, vibrate the vulva, and stimulate the sow by mounting her like a boar, with mounting tests.

8. After weaning, if the sow has lost body condition severely, you can first improve the sow's body condition and wait until the next estrus before mating.

9. Pigs that have eaten moldy (zearalenone) corn are very difficult to bring into heat, so the quality of the feed must be guaranteed.

If we have done the above properly and the sow still does not come into heat, we may as well use some hormone treatments.

If the sow still does not come into heat, check the records of the sow's last mating. For inferior-quality sows, resolutely cull them. This is also a way to improve production efficiency and production performance.

At this point, it is recommended to first treat the endometritis. In addition to injecting antibiotics into the sow intramuscularly, the sow's uterus should also be flushed. Penicillin-streptomycin + Houttuynia cordata + normal saline can be used to flush 2-3 times.