對于規(guī)模化養(yǎng)殖的農(nóng)戶來說，選種千萬不能過于隨意，同時選留幼兔作為后備種兔培育才能有效提升繁殖率等。下面來看看選留后備種兔的要點介吧。
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.
母兔胎生產(chǎn)的仔兔一般不宜留作種兔，因為大多數(shù)母兔胎配種時機體發(fā)育尚未完全成熟，所繁殖仔兔多存在個頭小、生長緩慢等問題，好是選擇第二胎以后的仔兔作為種兔。
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.
母兔繁殖率較低的情況下其后代不宜留作種兔，如果母兔連續(xù)每胎都只產(chǎn)5只以下的仔兔，且發(fā)情遲緩、發(fā)情不明顯的情況下則為繁殖率低下，選留種兔應選擇母兔胎產(chǎn)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.
留種的仔兔還需要看有沒有遺傳性疾病，例如牙齒生長異常、八字腿及畸形等，因為患這類疾病的兔子往往較難飼養(yǎng)且會對繁殖有一定影響，因此不宜留作種兔。
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.
母兔母性較差的情況下其后代不宜留作種兔，母性除了人為因素之外，多半和遺傳有著較大的關聯(lián)母性差的母兔所繁殖的后代母性多比較差，易出現(xiàn)產(chǎn)后不撕毛、無奶、咬仔等問題。
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.
待仔兔稍大一些還要進行再次精選，公兔一般4月齡便會“掉蛋”，對于沒有“掉蛋”公兔要予以淘汰，母兔則要看乳頭數(shù)量，一般母兔乳頭數(shù)量多為6~8個為宜。
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.
蒙陰長毛兔母兔一胎可能出現(xiàn)產(chǎn)仔少、不撕毛、不哺乳、咬仔兔的現(xiàn)象，而二胎、三胎仍是如此的情況下則需要進行淘汰。
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月齡進行初配，大型兔7月齡以上進行初配，對于體重不達標的兔子應視情況進行淘汰。另外公兔經(jīng)訓練不會爬跨、母兔多次誘導發(fā)情仍不發(fā)情或拒絕接受交配都應進行淘汰。
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.
以上就是養(yǎng)兔過程中選留后備種兔的一些要點介紹，希望對大家有所幫助。更多有關的內(nèi)容大家可以來網(wǎng)站
gdwk56.com看看資訊！
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 gdwk56.com!
發(fā)布日期：2022-05-09
來源：http://gdwk56.com 發(fā)布人：admin
