Causes of female infertility

The infertility of the female Tibetan mastiff is customarily called infertility. There are many reasons why bitches are infertile. They are extremely complicated. Improper feeding and management leading to nutritional imbalance is one of the important reasons. The analysis is as follows:

Poor husbandry and management, first of all, refers to the failure to provide the bitches with the various nutrients they need, and cannot guarantee that the bitches will receive a full-price balanced diet. In particular, the lack of or excess of various proteins, minerals, and vitamins can affect the nutritional balance of the female dog, causing the female dog to be unable to heat normally, ovulate, and breed, resulting in infertility.

Long-term feeding of excessive protein, fat and carbohydrate feeds, and lack of exercise, bitches appear to have excess nutrients, body memory accumulates excessive amounts of fat, bitches are too fat, ovarian surface deposits a large amount of fat, follicular epithelial steatosis, affect normal Follicular development and ovulation, bitches because of long-term estrus, no ovulation, infertility.

The lack of calcium, phosphorus, copper, selenium, zinc, and other constant and trace mineral elements in the feed has hindered the growth and development of the structure and function of the mother-dwelling mites. As the later reproductive system appears in the development of the system, it appears later in the ontogeny, but the growth is fast, and the advantage of late development is particularly obvious. Such organs are most affected when there is insufficient nutrition, especially minerals, resulting in severe developmental dysplasia and reproductive problems. The bitches are infertile.

Insufficient or lack of vitamin A not only causes obstacles in protein synthesis, minerals, and other nutrient metabolism processes in the dog, but also impedes the growth and development of various tissues and organs including the reproductive system. It also causes endocrine atrophy, insufficient secretion of sex hormones, and the lack of female hormones. Uterine mucosal epithelial degeneration, follicular atresia or cyst formation, can not be normal estrus, ovulation and pregnancy. In the absence of vitamin B, the uterus contraction function of the mother-mast itch can be weakened, egg production and ovulation are destroyed, and estrus is not observed for a long time. Insufficient vitamin E can cause bitter pregnancy interruption, stillbirth, weak or recessive abortion (embryonic loss). Insufficient long-term degeneration of the ovaries and uterine mucous membranes leads to permanent infertility. Although vitamin D has no direct effect on the reproductive ability of the mother puffer, it has a close relationship with minerals, especially with the absorption and metabolism of calcium and phosphorus.

For bitter infertility caused by unbalanced nutrition and poor feeding and management, the production should be started from the strengthening of feeding and management, and attention should be paid to adjusting the nutritional level of the bitch and the balanced supply of various nutrients from the boring period, and attention should be paid to various The most direct form of vitamin nutrient supplementation is the use of certain tablets and pills, which are fed directly into the bitch's mouth in doses. In a large-scale breeding farm, it is unlikely that each dog can be fed separately, and it may be used in the form of powders such as Mullevita and mixed in the feed. Care should be taken to prevent vitamins from losing their biological activity and efficacy due to various factors such as heat and light.

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