Four-year breeding breeding technique for rabbits
Although rabbit breeding has no obvious seasonality, it can be bred all the year round, but the differences in temperature, sunshine, and nutritional status in different seasons have certain effects on estrus, abortion, litter size, and survival rate of pups. Impact. For this reason, it is very important to rationally arrange breeding of rabbits during the four seasons to improve their breeding efficiency.
1. Spring. In spring, the weather is warm, sunshine is abundant, the temperature is appropriate, and the feed is gradually enriched. The female rabbits are estrus-intensive, the sexual performance is the most vigorous, the fertility rate of mating is high, and the number of litters is high. According to data, in spring (March to May), the female estrus rate can reach 80% to 90%, and the conception rate can be as high as 85% to 95%, with an average of 8 litters per litter. Therefore, spring is the best season for rabbit breeding. It is necessary to seize the time to breed and ensure the breeding of 2 children.
2. Summer. In summer, the climate is hot, the temperature is high, the humidity is high, the feed intake of the rabbit is reduced, the body weight is decreased, the quality of the semen of the male rabbit is significantly reduced, azoospermia and dead sperm are increased, the sex function of the female rabbit is not strong, the fertility rate of the mating rabbit is low, and the number of litters is small . According to the survey, in summer (June-August), the female estrus rate is 20%-50%, the fertility rate is 30%-40%, and the average litter size per litter is 3-5. Therefore, under normal circumstances, breeding should be suspended during the summer. The rabbit farms (households) with good conditions, such as the male and female rabbits, have strong physique, shade and heatstroke prevention and can control the temperature below 28°C, and can also arrange breeding in summer.
3. Autumn. In autumn, the climate is mild, the feed is rich and the nutritional value is high. The rabbit's physique begins to recover, the libido of the male rabbit gradually becomes stronger, the sperm motility increases, and the density increases; the female rabbit has a strong estrus, the fertility rate of mating is higher, and the number of litters is higher. According to reports, in autumn (September-November), the female estrus rate is 75% to 80%, and the mating rate is 70% to 80%. The average litter size is 6 to 7 per litter. Therefore, autumn is another good time for breeding rabbits. It is necessary to make reasonable arrangements to ensure the reproduction of 1 to 2 children.
4. Winter. In winter, the wind is cold and cold, the temperature is low, the sunshine time is short, the green and green feed is lacking, the nutrition level is decreased, the rabbit is thin and physique, the male rabbit is not sexually active, and the sperm activity and density are normal. According to data, during the winter (December-February), the female estrus rate is 60%-70%, and the fertility rate for breeding is 50%-60%. The average litter size per litter is 6-7. In winter, if there are more green feed supplies and good insulation facilities, better reproductive effects can still be obtained. In general, the young rabbits breeding and breeding in winter are more robust, with dense hair and strong resistance to disease. On the other hand, if rabbits are not suitable for a long time in winter, they may cause reproductive dysfunction and decline in sexual function, affecting breeding breeding in the spring.
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