提高蒙阴长毛兔繁殖力的主要措施有哪些

　　What are the main measures to improve the reproductive capacity of Mongolian long haired rabbits in the shade

　　1、科学喂养

　　1. Scientific feeding

　　维持种兔的身体状况是提高蒙阴长毛兔繁殖能力的重要措施之一。繁殖季节到来前，应逐渐增加蛋白质饲料、矿物质、维生素的量。对于过于肥胖的种兔，应适当限制高能量饲料的用量，对于过于瘦弱的种兔，应加强饲喂，以维持繁殖的体况，使种兔性功能旺盛。

　　Maintaining the physical condition of breeding rabbits is one of the important measures to improve the reproductive ability of Mongolian long haired rabbits. Before the arrival of the breeding season, the amount of protein feed, minerals, and vitamins should be gradually increased. For excessively obese breeding rabbits, the amount of high-energy feed should be appropriately limited. For excessively thin breeding rabbits, feeding should be strengthened to maintain their reproductive condition and promote their sexual function.

　　2、年龄结构合理

　　2. Reasonable age structure

　　种兔群体中，幼、壮、老种兔应有合理的年龄结构。种兔一般使用3年左右，每年约有1/3被淘汰。因此，每年应选留1/3以上的储备兔，进一步选育作为种兔来源。整个种兔种群应以青壮年为主。如果老种兔比例过大，就会影响整个兔群的生产。

　　In the rabbit breeding population, young, strong, and old rabbits should have a reasonable age structure. Rabbit breeding is generally used for about 3 years, and about one-third of them are eliminated each year. Therefore, more than one-third of the reserve rabbits should be selected each year for further breeding as a source of breeding rabbits. The entire rabbit population should be dominated by young adults. If the proportion of old breed rabbits is too high, it will affect the production of the entire rabbit population.

　　3.重复繁殖

　　3. Repetitive reproduction

　　正常情况下，只要母兔发情正常，公兔精液质量良好，只需交配一次即可怀孕。但为了保证母兔受孕，防止假孕，同一只公兔可在次配种后6-8小时再次交配。次交配的目的是刺激母兔排卵，第二次交配的目的是正式受孕。据实验，重复繁殖的受胎率可达95%-100%，每窝产仔数为6-8头。

　　Under normal circumstances, as long as the female rabbit has normal estrus and the male rabbit's semen quality is good, only one mating is needed to conceive. But in order to ensure the pregnancy of the female rabbit and prevent false pregnancy, the same male rabbit can mate again 6-8 hours after the first mating. The purpose of the first mating is to stimulate ovulation in female rabbits, while the purpose of the second mating is to officially conceive. According to experiments, the conception rate of repeated reproduction can reach 95% -100%, with 6-8 offspring per litter.

　　4.双重育种

　　4. Dual breeding

　　一只母兔与两只不同血缘关系的公兔连续交配，交配间隔时间不超过20-30分钟。目的是利用不同公兔的精子相互竞争，以提高卵子的受精率。同时，由于优良精子和卵子结合数量的增加，兔子的生命力就会旺盛，成活率也会很高。据实验，采用双配的受胎率比对照组提高25%-30%，产仔数增加10%-20%。但双配只能用于商品兔生产，不能用于种兔生产。

　　A female rabbit continuously mates with two male rabbits of different blood relationships, with a mating interval of no more than 20-30 minutes. The purpose is to utilize the excellent sperm of different male rabbits to compete with each other, in order to improve the fertilization rate of eggs. At the same time, due to the increase in the number of excellent sperm and egg combinations, the vitality of rabbits will be vigorous, and the survival rate will also be high. According to the experiment, the conception rate of the double matched group increased by 25% -30% compared to the control group, and the litter size increased by 10% -20%. But the dual configuration can only be used for the production of commercial rabbits and cannot be used for the production of breeding rabbits.

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