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1. Tune the week method: After the cow enters the estrus period, it will heat once every certain time. Specifically, the young cows will be estrus once every 18 days. The cows will be estrus once every 21 days, and the cows after 5 months will be about every 23 days. Oestrus once, if the estrous cycle of dairy cows is not allowed, it is often due to imbalance of reproductive hormone secretion in the body. Congenital genital abnormalities were excluded. The commonly used method is: Intrauterine injection of 20ml glucose saline, dissolved in 2mg chloroprostol sodium 3.2 million units of potassium G, 10ml rhubarb injection, once a day for 3 days. At the same time intramuscular injection of 2000uHcG daily, dissolved in 0.9% NaCl 10ml intramuscular injection for 2 days. After the eighth day of rectal examination of the follicle development status of dairy cows to determine the maturation of follicles to determine the best insemination time.
2. The new method of phlegm-reproduction: The infertility of the breeding stock is mostly caused by qi deficiency and blood stasis in the body. This is often due to postpartum blood circulation and phlegm, and the new Chinese medicine has not been promptly fed. At the same time, give the cows fed, Angelica 60g, Chuanxiong 60g, safflower 10g, peach kernel 15g, artichoke 50g, camphor 100g, red peony 40g, Cyperus rotundus 60g, Curcuma 40g, Motherwort 40g, Codonopsis 40g, Astragalus 30g, wood Pass 20g, wolfberry 40g, Atractylodes 40g, licorice 20g, leaves 10g, boiled boiling juice, waiting for warm irrigation service. The rule is to fill in the Qi, promote blood circulation, make new stasis, available blood stasis by silt soup, Siwu Tang. Buzhong Yiqi Decoction, biochemical soup reference application.
3, ovulation induction method: better estrus condition, congestive genital tract, glandular secretion, follicular development, ovarian flu cows. Cervical mouth with clear glands outflow, can be inseminated into the ovarian uterine horn of follicles, intramuscular injection of 0.9% NaCl 10ml dissolved in 50ug ovulation 3 (luteinizing hormone release hormone A3 50ug).
4, to promote bed method: For obvious ovulation nest, but poor uterine congestion, uterine contractility is weak, small elasticity, the uterine body feel soft cows, you can in the milk after the third day of steak eggs 3000uHcG dissolved in 20ml 0.9% NaCl solution.
In the years of improvement, the author will classify the dairy cows face to face, integrate them and apply them comprehensively. Using the above four methods to deal with the assigned cows, in the 8 years of practice to solve the problem of improved fertility rate due to the adoption of feeding and feeding, and it can be used as a reference for the peers engaged in the improvement of the grandmother.
Traditional Chinese and western medicine treatment of cows with repeated infertile methods
With the continuous development of dairy farming methods and the emphasis on people-oriented thinking, dairy cows are often neglected in their reproductive physiology. Due to long-term care and feeding, cows lack exercise and sunlight, resulting in a reduced conception rate of dairy cows. Infertility, the author used the following methods to improve the conception rate in long-term dairy cow improvement practice.