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1. Pay attention to selection and reasonable breeding
In strict accordance with the requirements of selecting species, male and female rabbits that meet the requirements for species selection should be selected. In order to prevent inbreeding, male and female rabbits should maintain proper proportions. General product rabbit farms and farmers, the ratio of male to female 1:8 to 1:10, species of pure rabbit breeding 1:5 to 1:6 suitable. When mating, pay attention to the breeding intensity of male rabbits and reasonably arrange the breeding times for male rabbits.
2. Strengthen the nutrition of breeding male and female rabbits
From the first two weeks of breeding to the entire breeding period, male and female rabbits should strengthen nutrition, especially the supply of protein and vitamins should be sufficient.
3. Timely breeding
Including timely mating season and breeding time. Although rabbits can breed in four seasons, but the weather is hot in summer, many "infertility in summer" phenomenon occurs, that is, male rabbits have decreased libido and quality of semen. The majority of female rabbits are reluctant to receive mating, even if they are accompanied by weak and stillbirths. Also more. Breeding generally should not be in the summer, spring and autumn is a good season for breeding, winter can still achieve better results, but should pay attention to cold insulation. Timely mating, in addition to the arrangement of the season, the female rabbit must choose the best mating period during the estrus period, that is, the middle period of estrus, the genitals red or more moisture, especially when wet mating.
4. Artificial aphrodisiac
In actual production, some female rabbits do not have estrus for a long time and refuse mating to affect reproduction. In addition to strengthening feeding management, hormones, sexual inducement and other artificial aphrodisiac methods may also be used. Hormone aphrodisiac can be induced by estradiol, maternal serum gonadotropin, etc., and ovulation hormone No. 3 has a good effect on promoting estrus and ovulation in female rabbits. Aphrodisiac-induced aphrodisiac can not be used for long-term estrus or refusal breeding female rabbits, can adopt care or the female rabbit into a male rabbit cage, let it chase after climbing crawling back to the female rabbit, after 2 or 3 times will be able to induce Female rabbits secrete sex hormones that promote their estrus and ovulation.
5. Repeated breeding and double breeding
Repeated breeding refers to reassortment with the same male rabbit after the first breeding. Repeated breeding can increase fertilization opportunities, increase conception rate and prevent pseudopregnancy. In particular, male rabbits that have not been used for a long period of time must undergo repeated breeding. In the first shot of this type of male rabbit, more dead sperm were found. Double mating refers to the first mating and mating with another male rabbit. The double mating is only suitable for the production of commercial rabbits. It is not suitable for the production of rabbits to prevent miscellaneous causes. Double breeding can avoid infertility caused by male rabbits and can significantly increase the conception rate and the number of litters. In practice, care must be taken to wait until the first male rabbit's odor disappears and then mate with another male rabbit. Otherwise, because of the smell of other male rabbits on the female rabbit, it may cause a fight and not only fail to provide a smooth breeding but also may bite. Injured female rabbit.
6. After the mating, check the tires in a timely manner to reduce empty space.
7. Proper frequency breeding
Frequent breeding is also called "matching of blood" or "blood matching", that is, the female rabbit is bred on the day of birth or on the second day, and lactation and pregnancy are performed at the same time. Using this method, the breeding speed is fast, but because breastfeeding and pregnancy are carried out at the same time, it is easy to damage the condition of the female rabbit, the breeding rabbits have a shorter service life, and the natural elimination rate is high, which requires good feeding management and nutrition levels. Therefore, the use of frequent breeding of commercial rabbits, must use high-quality feed to meet the nutritional needs of the female rabbits and puppies, strengthen feeding and management, the female rabbits are regularly weighed, and once the body weight is significantly reduced, stop blood allocation. In production, the three methods of frequency breeding, semi-frequent breeding (maturing 7 to 14 days after mating) and delayed breeding (after weaning and breeding) should be used alternately according to the condition of the female rabbit and feeding conditions.
8. Create a good environment and maintain proper light intensity and lighting time
Do a good job of miscarriage and production, during the pregnancy, do not feed the rotten spoilage, frozen and hit the pesticide feed, to prevent disturbing, not to let the female rabbit be frightened, so as not to cause miscarriage.
The main factors affecting the rabbit's fecundity are variety, age, individual, nutrition, mating system and management, temperature, light, genital diseases. In order to increase fertility, the following measures can generally be taken: