1. Feeding management and disease prevention of the female animal (1) Feeding management. Feeding levels have a significant impact on the development and sexual function of the female animals' sex organs, directly affecting the quality of semen. Insufficient fodder protein, or lack of calcium and phosphorus can cause ovarian dysfunction or inhibit ovulation. In the winter and spring withered season, grazing alone, if not adding fodder or fine material, often lead to decreased waterlogging due to malnutrition, gonadal atrophy, estrus is not regular, estrus performance is not obvious, or even estrus. Therefore, in order to improve the conception rate, it is necessary to strengthen the feeding management so that the damaging level of the female livestock can reach the upper-middle level.
(2) Disease prevention and treatment. Maternal insemination must be healthy and disease-free, and the genital and ovulatory physiological activities should be normal. Some livestock have a healthy surface but suffer from reproductive system diseases such as ovarian cysts, chronic metritis, and oophoritis that are difficult to conceive. For these diseases, the combination of systemic treatment and local treatment should be used. In the case of repeated infertility, chronic uterine endometritis animals should be treated with uterine perfusion of uterine perfusate and anti-inflammation. After the endometritis is completely cured, artificial insemination is performed. Can improve the conception rate.
2. Level of artificial insemination Artificial insemination is an improper technique and is one of the important causes of infertility. Cleaning, disinfection, semen collection, semen processing, insemination, and other links are closely linked. If one link is deducted and one of the links is not well-handed, it may cause adverse consequences of mismatch or infertility. Therefore, strict compliance with the artificial insemination technical operating procedures, truly meticulous, and constantly improving the technical level is an important factor to ensure that the conception rate is increased.
3. Insemination time Choose the most appropriate time for insemination in order to ensure that viable sperm and eggs meet at the site of fertilization in order to increase the conception rate. If the insemination time is too early and the egg has not been discharged, the sperm will live in the female reproductive tract for a long time and become old and lose fertility. Conversely, if the animal loses its time after passing, the egg cannot meet the sperm in time and the loss of fertilization due to aging will affect the sperm. Female fetus effect.
In addition, appropriate increase in the number of breeding, the use of mixed semen insemination, and early detection of pregnancy to prevent mismatch, will help improve the conception rate.
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