The effect of vitamins on the reproductive performance of pigs is so great!

Vitamin is one of the important factors affecting the reproductive function of pigs, which needs to contain a certain amount of vitamins in pig diets. In this paper, the action mechanism of vitamin A, B, D and E was described, and the deficiency and excessive harm of vitamins in pigs were introduced.

Vitamins are a kind of trace low molecular organic compounds which are essential to maintain the normal physiological function of animals. although they are not the main components of tissues or the source of energy of the body, they play a great role in animals. Most of them are coenzyme components. These enzymes are indispensable to carbohydrate, fat and protein metabolism.

4. Effect of vitamin E imbalance on reproductive function of pigs.

Vitamin E is a group of bioactive phenolic compounds with similar chemical structure, which mainly exists in plant feed. It is needed at different growth stages in all kinds of animals. Among them, α-tocopherol has the strongest anti-sterility activity. The role of promoting gonadal development and maturity, promoting conception and preventing abortion.

The deficiency of vitamin E in feed and the depletion of vitamin E in the body are the main causes of infertility. Vitamin E is a lively antioxidant that can make protein, nucleic acid and metabolism normal. Animals themselves cannot synthesize vitamin E, but they can store it. When the feed contains fat and bile acid, vitamin E is absorbed from the small intestine.

Vitamin E has a variety of physiological functions, so when it is insufficient, the symptoms are different. It is related to the respiratory process; prevents metabolic toxic products from forming excess enzymes in the body; regulates the metabolism of carbohydrates, proteins and lipids in the body and tissues to normalize the function of many enzyme systems; and regulates the function of endocrine glands, participate in embryonic development and prevent reproductive dysfunction.

When vitamin E is deficient, metabolism is impaired to a considerable extent, and serious morphological changes occur in the cerebral cortex, cerebellum and spinal cord. The structural changes of various organs and tissues, while the protein involved in muscle contraction decreased, muscle atrophy and uterine physiological function disorder occurred. The secretion of luteinizing hormone and follicle-stimulating hormone in the anterior pituitary stopped, while the absorption and regulation of vitamin An and fat was blocked, which formed toxic products and poisoned embryonic epithelial cells, which played an adverse role in fertilization and normal development of embryo and fetus.

After pregnancy in sows, due to vitamin E deficiency, embryos can die and be absorbed. Mild vitamin E deficiency has no effect on pregnancy and delivery, but may produce stillbirth, weak fetus or lifeless fetus; in severe deficiency, pregnancy is interrupted and embryos die, be absorbed and have recessive abortion after implantation. Long-term vitamin E deficiency, ovarian and uterine mucosa degeneration, can no longer become pregnant, become permanent infertility.

There are many kinds of vitamins in green succulent feed, such as proper preservation, proper preparation and reasonable collocation, which is easy to achieve balance under general production conditions. However, with the intensive development of pig industry, the addition of vitamins deserves more and more attention.