Rabbit Spring Breeding 5 points
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The superior breeder rabbits with high production performance and reproductive performance were selected as future generations of rabbits. The selected rabbits must have good genital development. The male rabbits have large and uniform testes, strong sperm motility, and a strong sexual desire. The female rabbits are large in length and have more than 8 pairs of nipples. Maintaining the excellent body condition of rabbits has a great influence on the fertility rate and birth rate of female rabbits.
Second, increase nutrition and promote estrus
1. After winter, the constitution of the rabbit is obviously decreased. If the malnutrition causes the female rabbit not to be estrus, the male rabbit has low libido. Therefore, the rabbit must be provided with nutrients to promote estrus. The daily feeding amount of each rabbit is controlled at 130 to 150 g. It is appropriate.
2. Ensure the utilization of male rabbits. In general, a male rabbit can bear the task of mating 8 to 10 female rabbits. However, from the implementation point of view, the ratio of male to female rabbits should be 1:3 to 1:5.
3. In order to promote early estrus in the female rabbits, feed about 100 grams of fresh malt each day, and then feed one week or intramuscular injection of "triple hormone" injection, 1 ml per rabbit.
Third, timely breeding, stimulate ovulation
1. As long as the conditions are favorable, the female rabbit can be in heat for a long period of time. The periodic interval is 8 to 9 days, and the length is 15 days. Each time the heat is continued for 3 to 5 days.
2. The female rabbits must be stimulated by male rabbits to stimulate ovulation. Therefore, after the first mating, the rabbits are replenished once every 6 to 8 hours. They are generally susceptible to fetuses. During the estrous period, the female showed a decline in appetite, wet and reddened vulva, and when the vulva was red, it indicated that the estrus was sensational; when the red color appeared, it indicated that the estrus reached the top; when chasing and crawling occurred, it was the best time for breeding.
3. If two male rabbits are mated with the same estrus female rabbit, they should normally complete the breeding within 15 minutes and within 4 hours (called double matching). In the maternal rabbit estrus mating, the highest rate of conception.
Fourth, master breeding methods, improve the conception rate
1. Natural mating. The hair around the genitals of estrus and pre-matched rabbits was cut off, and the female rabbits were placed in male rabbit cages for mating.
2. Artificially assisted mating. Some female rabbits have estrus, but do not accept mating. Artificial assist methods can be used. The method is: a thin rope is tied to the end of the female rabbit, and the other end is pulled from the back to the front. The left hand pulls the string and the ear of the female rabbit. And neck, with his right hand stretched to the female rabbit's abdomen, the female rabbit buttocks lifted, the formation of tail-high head shape, easy to mating rabbits.
V. Improving the survival rate of puppies
The puppies are the rabbits from birth to weaning. Rabbits have the highest mortality rate at the stage of puppies. To improve the survival rate of puppies, the focus is to help the pups to have a good "three levels": newborn clearance, weaning clearance and supplementary feeding. Specific should do the following: 1. Attention to the nutritional supply of female rabbits in late pregnancy; 2. Pay attention to the female rabbits' delivery; 3. Pay attention to let the pups eat full milk; 4. Pay attention to the timely feeding of puppies; Rabbit house hygiene, prevention of disease; 6. Attention to rodent and animal pests.