The current improved cattle market is better. Each head of improved cattle is 800-1000 yuan more than local cattle. However, the lower conception rate of cows directly affects economic efficiency. Combining the practice of improving cattle for many years, the author summarized ten measures to improve the conception rate of cows. 1, intramuscular injection of oxytocin within 5-7 minutes after the cow insemination or mating, intramuscular injection of oxytocin 100 units, the conception rate can be increased by 28%. 2, injection of gonadotropin in the insemination or breeding of cows, intramuscular injection of gonadotropin 1000-2000 units, after injection can improve the conception rate of 12% -19%. 3. Intramuscular injection of vitamins On the day of cow insemination and on the fifth day, intramuscular injection of VA 600,000 units, VD 3.1 million units, and VE 50 mg, the conception fertility rate can be increased by 18%. 4, injection of sodium selenite VE on the day of cow insemination to the deep intramuscular injection of sodium selenite vitamin E injection 30-50 ml, or dissolve it in water for cattle to drink, the emotional fertility rate increased by 20% . 5, injection of vitamin A, D and VE needles intramuscular injection of VAD injection 5ml on the day of cow insemination and 5-6 days, intramuscular injection of VE needles in a ratio of 5-20 mg per kg body weight, The cow conception rate can be increased by 15%-17%. 6, the injection of oxytocin 10 minutes after the cow insemination, the cow intramuscular injection of oxytocin 100 units, can make the cow fertility rate increased by 20%. 7. Intramuscular injection of sodium selenite After insemination or mating of the cow, 25 ml of 0.2% sodium selenite injection and 250 mg of vitamin E were injected at a time, and the conception rate of the cow was increased by 28%. 8, injection of prostaglandin muscle 0.3-0.4 mg of prostaglandin injection, 2-3 days after the injection of cattle began to heat, mating to achieve abortion. 9, subcutaneous injection of colostrum on long-term non-estrus cows, subcutaneous injection of colostrum 20 ml and 0.5% neo-phase injection 2 ml, can make the mother quickly estrus, mating can be pregnant. 10. Intramuscular progesterone intramuscular injection of progesterone 40-60 mg before insemination, followed by insemination immediately after the injection, once each time of love, pregnancy rate of pregnancy rate increased by 29%.
The Greenhouse Film Manual Roll Up Unit can roll up a length of 60-80 meter, running stably with fine out side looking and long time of usage. The inside drive gears are made of high quality steel with fine workmanship, and what is more, there is lubricating bearing assembled on the out put and input shaft. At the meantime, there is also a group of reverse gear added to it. All these make the unit to be light and easy for
Greenhouse Film Electric Roll Up
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