Breeding characteristics of Rex rabbits
1. Sexual maturity and body maturity are related to individual size, feeding management, and climatic conditions. Rex rabbits are generally sexually mature at 3 to 4 months of age, and the body maturation time is approximately twice that of sexual maturation. The male rabbit is later than the female rabbit. 2. The female rabbits of 5 months to 6 months of age and 2.5 kg or more in weight are suitable for male rabbits. Male rabbits must be 7 to 8 months old and have a body weight of 3 kilograms or more. 3. The number of years of service and the percentage of retention-of-retention usually extend from 3 to 4 years. If the feeding conditions are good, the individual may be prosperous and may extend it appropriately. Under natural mating, the proportion of males and females who choose to stay is 2:8. Females have a pregnancy time of 30 days and a lactation period of about 45 days. 6 to 7 per baby, 10 more. All year round breeding and mating, but pay attention to natural conditions and economic benefits. In northern China, it is better to reproduce in the spring and autumn, and the south can be suitable in February to May and September to November. 4. The key to breeding and mating is mastering the mating time of male and female rabbits. Carefully observe the female estrus performance and grasp the estrus period. The average estrus cycle of females is 8-15 pupa. The performance of the estrus is disturbed, the appetite is reduced, and other females are crawled. The genital area is moist and flushing is swollen. Look from the vulva color, when white has not been in heat, pink will have heat, red estrus is affluent, to purple and there is swelling and secretions occur when the female estrus peak, this time the most likely to be fetus. Normally, the female rabbit is estrus 2 to 3 times a month for 3 to 4 days. When mating, the female rabbit must be placed in a male rabbit cage. The male rabbit climbs up on the back of the female rabbit. The female rabbit rears off from the ground and raises its tail to welcome the mating. 12 to 14 hours after mating, libido decreased, so the compounding must be performed within 5 hours after the first mating, and the effect is better. 5. Pregnancy check is necessary after the male and female rabbits are mated. On an empty stomach, the female rabbit is turned inwards in the neck, and the left rabbit grasps the rabbit ear and neck skin. The right index finger and the thumb are open and placed on the abdomen, and the stomach is slowly and gently explored along the abdominal wall, such as in the abdomen. Soft, without conception, if faba bean size, and elastic ball, it is proven to be pregnant. 6. Before giving birth and breast-feeding female rabbits, the vulva swells and bleeds, and there is a nesting phenomenon. Simultaneously, the breasts swell and swell, the ears dither, and they neither drink nor feed. Usually females give birth more often from midnight to midnight: When the mother is born, the back of the female rabbit is arched, usually for 2 to 3 minutes, and it takes about 30 minutes. Three days before childbirth, appropriate reductions should be made. The disinfected litter boxes should be placed in female rabbit cages and covered with soft mats. During the entire delivery process, the environment should be kept quiet to prevent disturbing and clean drinking water and fresh green fodder should be fed immediately after delivery. For those female rabbits who do not produce pupa before they are born, the maternal hair around the nipple can be pulled artificially after birth to facilitate breast milk secretion and lactation. After 3 days of postpartum, the concentrate feed was fed gradually and 0.5 grams of sulfamonium and soda tablets were fed twice a day to prevent mastitis. Rabbits and rabbits should eat colostrum in time, and special attention should be paid to weak frail rabbits, which can be monitored by manual feeding, small first eating, and large after eating. If you have a lot of births, you can pick out the "dry mom" in time.