Detailed Explanation of the Causes of False Pregnancy in Sows and Prevention and Control Measures

A sow that does not conceive after mating, yet whose belly grows day by day just as if she were pregnant, whose udder gradually swells and may even produce milk, but which never gives birth to piglets - this is false pregnancy. This phenomenon seriously wastes the sow's reproductive capacity, so what causes false pregnancy in sows? And how should it be handled? Let's take a look together.

I. False Pregnancy in Sows

First, because the embryo dies and is absorbed in the early stage, but the corpus luteum of pregnancy does not disappear, causing progesterone to continue being secreted, just as if the sow's pregnancy were still ongoing, so some signs of pregnancy appear; second, because of malnutrition, which causes endocrine disorders in the sow, delaying or stopping her estrous cycle; third, ovarian dysfunction; fourth, abuse of hormone drugs to induce estrus; fifth, parasitic infestation, which causes disorders of the reproductive system.

II. Prevention and Control Measures

1. First, do a good job of feeding and lighting at each stage, so as to prevent the sow from becoming too fat or too thin; supply green fodder as much as possible and pay attention to vitamin supplementation, so as to ensure normal estrus and ovulation in the sow.

2. If the sow shows abnormal estrus, there is no need to rush to mate her; targeted treatment should be adopted, and mating should be carried out when she comes into natural estrus.

3. For sows after weaning, short-term flushing feeding measures should be carried out. For sows just weaned, feeding management should be strengthened and protein supplemented in appropriate amounts; during the weaning and separation period, deworming and epidemic prevention work should be done well. For sows in poor body condition, strengthen feeding, and carry out mating after their body condition has recovered.

4. After mating, observe carefully; once a case of false pregnancy is found, take measures in time to terminate the sow's false pregnancy.

5. In order to prevent reproductive tract diseases from affecting ovarian function, penicillin can be injected intramuscularly into the sow after farrowing, 2 times a day for 3 consecutive days.

6. When using hormone drugs to induce estrus, remember the type and dosage of the drugs used, and it is best to wait until the sow comes into natural estrus before carrying out mating.

  The above is an introduction to the causes of false pregnancy in sows and the prevention and control measures. We hope it can help you. To learn more related knowledge, please stay tuned to us.