Animal sex control is a bioengineering technology that can significantly improve the economic benefits of animal husbandry. In the hair production of long-haired rabbits, female rabbits produce 15% to 20% more hair than male rabbits. In the production of rex rabbits, the skin of female rabbits is one grade higher than that of male rabbits. In meat rabbits, female rabbits grow 10% to 15% faster than male rabbits. It can be seen that multiple female rabbits can significantly improve economic efficiency. Some rabbit farms have experimented several times in the breeding practice and explored several methods for multiple female rabbits: First, using male rabbits to mate more times, the more regular female rabbits are, the male rabbits that have been mated for 7 days are mated with the male rabbits on the first or second day of estrus. Using these two methods, 34 litters were tested and 208 were born, of which 161 females accounted for 77.4%. Second, to strengthen the female rabbits' exercise capacity, and to increase the mother's creatine content so that the uterus's PH value decreases, so that the female rabbits have more female rabbits. During the estrus of the female rabbit, it can be put into a larger activity space, and it can take frequent actions such as chasing and tossing and be in a state of fatigue, and then mate. In this way, 4 nests were tested and the rate of female rabbits was above 65%. Third, 8 to 12 days before the breeding of female rabbits, 20 grams of glucose and 50 mg of vitamin E are added to the mixture each day. Using this method of breeding, female female rabbits can be about 12% higher than male rabbits. Environmentally Straw Cup,Straw Cup,Wheat Straw Cups,Wheat Straw Drink Cups Yangzhou Tongfun Red International Trading Co,Ltd. , https://www.i-ecbio.com