What to Do About Sow Infertility? Cause Analysis and Solutions

In pig farms, we often see many sows that fail to come into heat during production, or that show delayed or indistinct heat signs. These problems are also one of the reasons many pig farm breeders lose a large sum of money year after year. There are many causes of failure to come into heat, and they are closely related to the feeding methods and management practices of the breeder. So below, Shuaishuai will explain what to do about sows that do not come into heat!

I. Sow infertility caused by pathological factors

1. Endometritis

This is a common condition that can directly cause infertility, and most cases are due to this disease. Once a sow contracts it, the mucosa inside the uterus becomes purulent, triggering a series of inflammations; even if she conceives after coming into heat, she is very likely to miscarry. We can flush it with normal saline and potassium permanganate solution, or use penicillin together with streptomycin to fight the infection.

2. Sow infertility caused by ovarian cysts

Because of imbalanced secretion of follicle-stimulating hormone and luteinizing hormone, the follicles on both sides of the sow enlarge, accumulate a lot of follicular fluid, and then become luteal cysts, which can very likely cause the sow not to come into heat. So when luteinizing hormone secretion is insufficient, the pig can be injected with HCG to bring on heat.

3. Sow infertility caused by persistent heat

Insufficient luteinizing hormone prevents the sow from ovulating, which directly makes her unable to reproduce, or even not come into heat. For this situation, we can solve it by injecting HCG into the muscle.

II. Sow infertility caused by improper feeding management

1. Improper feed

If the feed normally given lacks vitamins and some trace elements needed for life activities, it will cause sow infertility. In addition, vitamin A, vitamin E, and manganese can all disrupt the sow's reproductive function, causing failure to come into heat and symptoms of infertility. For this, we should normally improve their feed, feeding more feed containing vitamins and carotene, and can also add more trace elements to the feed, so that the sow's nutrition is more complete and the heat rate is higher. Refined cod liver oil can also be mixed into the feed.

2. Improper management

Some farms have a very poor environment: not ventilated and not breathable, sealed up tightly, resulting in a very poor environment, which affects the pigs' mood. In addition, sows and boars are generally separated, and after separation the sows lack sexual stimulation for a long time, causing infertility. In addition, hunger can be used to stimulate sows to come into heat, and medication can also be used.

The above are the causes of and solutions for sow infertility. Have you learned them? If people see the above symptoms, they should treat and manage them promptly. I hope this article can help everyone.