对于规模化养殖的农户来说，选种千万不能过于随意，同时选留幼兔作为后备种兔培育才能有效提升繁殖率等。下面来看看选留后备种兔的要点介吧。

　　For large-scale farming farmers, the selection of species must not be too random, at the same time, the selection of excellent young rabbits as backup rabbit breeding can effectively improve the reproductive rate. Here's a look at the key points of selecting and retaining rabbits.

　　母兔胎生产的仔兔一般不宜留作种兔，因为大多数母兔胎配种时机体发育尚未完全成熟，所繁殖仔兔多存在个头小、生长缓慢等问题，好是选择第二胎以后的仔兔作为种兔。

　　Female rabbit in the first embryo production of the rabbit generally should not be left as a kind of rabbit, because most female rabbit in the first embryo when the body development is not fully mature, the reproduction of the rabbit is small, slow growth and other problems, it is best to choose the second embryo after the rabbit as a kind of rabbit.

　　母兔繁殖率较低的情况下其后代不宜留作种兔，如果母兔连续每胎都只产5只以下的仔兔，且发情迟缓、发情不明显的情况下则为繁殖率低下，选留种兔应选择母兔胎产6-7只以上的仔兔。

　　In the case of low reproductive rate of female rabbits, their offspring should not be kept as rabbits. If the female rabbits produce only 5 rabbits in each successive embryo, and the estrus is slow and estrus is not obvious, the reproductive rate is low. The selected rabbits should choose female rabbits to give birth to more than 6-7 rabbits.

　　留种的仔兔还需要看有没有遗传性疾病，例如牙齿生长异常、八字腿及畸形等，因为患这类疾病的兔子往往较难饲养且会对繁殖有一定影响，因此不宜留作种兔。

　　Breeding rabbits also need to be checked for genetic diseases, such as abnormal tooth growth, figure-leg and deformity, as rabbits suffering from such diseases are often difficult to feed and will have a certain impact on reproduction, so it is not advisable to keep them as breeding rabbits.

　　母兔母性较差的情况下其后代不宜留作种兔，母性除了人为因素之外，多半和遗传有着较大的关联母性差的母兔所繁殖的后代母性多比较差，易出现产后不撕毛、无奶、咬仔等问题。

　　In the case of poor maternal rabbit, its offspring should not be left as a kind of rabbit. In addition to human factors, most of the offspring bred by the mother rabbit with large correlation of poor maternal sex are more poor, prone to postpartum not tearing hair, no milk, bite and other problems.

　　待仔兔稍大一些还要进行再次精选，公兔一般4月龄便会“掉蛋”，对于没有“掉蛋”公兔要予以淘汰，母兔则要看乳头数量，一般母兔乳头数量多为6~8个为宜。

　　To be a little bigger rabbit will be selected again, male rabbit generally 4 months of age will “drop eggs”, for no “drop eggs” male rabbit to be eliminated, female rabbit is to see the number of nipples, generally the number of female rabbit nipples is 6~8.

　　蒙阴长毛兔母兔一胎可能出现产仔少、不撕毛、不哺乳、咬仔兔的现象，而二胎、三胎仍是如此的情况下则需要进行淘汰。

　　Mengyin long-haired rabbit mother rabbit a fetus may appear to give birth to less, do not tear hair, not breastfeeding, bite the phenomenon of young rabbit, and the second, the third is still so the case needs to be eliminated.

　　一般中小型兔5~6月龄进行初配，大型兔7月龄以上进行初配，对于体重不达标的兔子应视情况进行淘汰。另外公兔经训练不会爬跨、母兔多次诱导发情仍不发情或拒绝接受交配都应进行淘汰。

　　General small and medium-sized rabbit 5~6 months of age for the initial match, large rabbit 7 months of age above the initial match, for the weight of rabbits should be eliminated according to the situation. In addition, male rabbits trained not to climb, female rabbits repeatedly induced estrus is still not estrus or refuse to accept mating should be eliminated.

　　以上就是养兔过程中选留后备种兔的一些要点介绍，希望对大家有所帮助。更多有关的内容大家可以来网站www.myxinhua.com看看资讯！

　　The above is the selection of rabbits in the process of reserving some points of rabbit introduction, I hope to help you. For more information, please visit www.myxinhua.com!