Neostigmine combined with chorionic gonadotropin for treatment of estrus or oestrus
2018-05-25 01:03:49
The breeding of dairy cows is the key to the technical work of dairy farms, and it is also a prerequisite for the production of good economic benefits. How to increase the reproduction rate is the top priority. Clinical practice has proved that the use of neostigmine in combination with human chorionic gonadotropin treatment does not produce estrus or estrus in dairy cows and achieves satisfactory results. 1. Materials and Methods 1.1 Milk cows are not estrus or estrus is not obvious cows, the uterus is normal and no inflammation, no abnormal ovaries. 1.2 materials chorionic gonadotropin, specifications 1000u10, each containing 1000u. Neostigmine methylsulfate injection, specifications 1ml 10, each containing 0.5mg, or specifications 2ml 10, each containing 1mg. 1.3 Methods Each head and neck muscle was injected subcutaneously with neostigmine 2ml/time for 3 times. In the third time, chorionic gonadotropin 1000u injection was also performed by diluting with human chorionic gonadotropin 1000u with normal saline. Neostigmine injection. 2. As a result, the estrus rate was 76.92% and the fertility rate was 75% in dairy cows that used only human chorionic gonadotropin. After 3 to 30 days of injection of neostigmine combined with human chorionic gonadotropin, the cow showed obvious estrus symptoms and the estrus rate was 91%. After 60 days of mating, rectal examination revealed that the rate of conception was 95%. The effect is significantly improved. 3. Analysis 3.1 Human chorionic gonadotropin can promote the secretion of gonads in dairy cows, mainly with the role of luteinizing hormone and follicle stimulating hormone, and thus has obvious progestational effects. 3.2 Neosex's excitement The cow's uterine smooth muscle promotes uterine contractions and enhances ovarian function, thereby promoting cow estrus. Because neostigmine is effective in the use of human chorionic gonadotropin, its operation method is simple, and its price is cheap, so it has the value of promotion and application.
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