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2. On the day of cow insemination and on the 5th to the 6th day, the cows were intramuscularly injected with 5 ml vitamin A and D injections and intramuscularly injected with vitamin E at a rate of 5 mg-20 mg/kg body weight. The rate can be increased by 15%-17%.
Third, after the insemination of the cow, intramuscular injection of gonadotropin 1000 units -2000 units, can increase the conception rate of 12% -19%.
4. After the insemination of the cow, 25 ml of 0.2% sodium selenite injection and 250 mg of vitamin E are injected at one time, and the conception rate of the cow can be increased by 28% or more.
Fifth, for the ectopic cows with poor ovarian function, give them 2 ml of 0.5% neostigmine injection, and inject once every 18 hours for a total of 3 injections. At the time of the third injection, at the same time, 100 gestational hormone gonadotropins were injected into the ovaries of most of the cows to restore ovulation function and ovulate. After mating, it is easy to conceive.
Sixth, for ovarian cysts and ovarian dysfunction in reproductive age cows, each day intramuscular injection of progesterone 50 ml, once every 6 days, and then injected into the 1000-5000 units of villus gonadotropin, can make 7%-8% of estrus Cows are estrus. After mating, 42% of cows are pregnant.
Seven, take Yi Ping grass 90 grams, 50 grams of pumpkin leaves, 40 grams of safflower, Jianshui to the cows gavage, use 2 days -3 days, can make the cow estrus, fertility rate of breeding can be increased by 15%.
Eight, take the old date bark 180 g, safflower 300 grams, add water 2000 ml -3000 ml decoction filtrate, the cow points two times sooner or later, for two days, the cow can be estrus breeding, fertility rate can be Increase by 25%.
Nine, add 40% dry onion in the feed, fed once every 3 days, breeding in cows during estrus can increase fertility rate.
X. Within half a month after mating, cows should be fed with bran or 1 kg of distiller's grains at night every night. Adding a little salt will help fertilized eggs to implant. At the same time, one-time daily feeding of cows with vitamin E 500 mg of concoction and feeding for 1 month can promote early embryonic development and timely implantation, and prevent cow abortion and miscarriage.
Raise the rate of ten cows
First, 5 to 7 minutes after the insemination of a cow, intramuscular injection of 100 units of oxytocin can increase the fertility rate by 28%.