发布时间 2014-06-13
1.种公兔的选择。应选择体型大、生长快、产毛量多、抗病力强的公兔,外观上要求头毛丰盛,脚毛奔放,耳毛浓密,背部、腹部长满绒毛。同时,选择的种兔体质要健康良好,周身绒毛紧贴而有光泽,眼睛明亮,肛门、阴部洁净。此外,选种时还要注意睾丸是否匀称和雄性特征是否明显。
1 male rabbits were selected. Should choose large, fast growth, wool yield, strong disease resistance of male rabbits, appearance requirements hair big feet, Mao Benfang, ear hair, back, abdomen covered with fluff. At the same time, the rabbit physique to good health, all villi clingy and shiny, bright eyes, anal, genital clean. In addition, but also pay attention to whether the symmetry selection of testis and male characteristics is obvious.
2.防止近亲交配。现在农户一般都是一家一户养一窝小兔,所以近亲交配现象严重,生下的仔兔很不理想。由于近亲交配,后代体质弱,抗病力差,生长发育慢,从而造成品种退化。这是因为交配的公、母兔在三代内有相同的血缘关系,所以,集体兔场或农民家庭养兔都要切实把好这一关。
2 prevent inbreeding. Now farmers are generally a raise a brood of rabbit, so the inbreeding phenomenon is serious, born of the rabbit is not ideal. Due to inbreeding descendants, physical weakness, poor disease resistance, growth slow, resulting in degeneration of variety. This is because the mating male, female rabbits have the same blood relationship, in the three generation of collective farm or so, peasant family rabbit should cogent good this.
3.年龄选配合理。实践证明,以壮年公兔配壮年母兔为最好,切忌以青年公兔配青年母兔或者老年公兔配老年母兔。因为这样产生的后代质量差,体型小、产毛率低。
3 age and reasonable. Practice has proved, a young male rabbits with adult female rabbits are best, avoid to young male rabbits with young female rabbits aged male rabbits with or elderly female rabbits. Because the resulting offspring of poor quality, small size, low rate of wool.
4.公母兔体质要健康。如果公母双方有同样严重的疾病和缺陷,或者有不同严重疾病和缺陷的,都不能交配。
4 male and female rabbit physique health. If the male and female both sides equally serious diseases and defects, or with various serious diseases and defects, are not mating.
5.掌握兔的性成熟期。兔的性成熟期较早,有的4个月就有发情表现。此时如果交配受孕,不但母兔发育受到影响,而且生下的仔兔体型差,母兔乳汁少,仔兔很难育成。所以,一定要防止过早交配。一般母兔长到6~8个月,公兔长到7~9个月,体重均达到2千克以上时,方能开始交配。为了避免乱交乱配,应固定每只公兔轮流配母兔7~8只,母兔每年产仔应控制在3~4窝。
5 Master rabbit sexual maturity. Rabbit sexual maturity earlier, 4 months and some have estrus expression. If mating conception, not only affect the development of female rabbits, and gave birth to pups are poor, mother rabbit less milk, rabbit is very difficult to incubation. Therefore, we must prevent the premature mating. The general female rabbit grow to 6 ~ 8 months, male rabbit grow to 7 ~ 9 months, body weight reached 2 kg, can start mating. In order to avoid promiscuity disorderly distribution, should be fixed every male rabbit turns with female rabbits 7 ~ 8, mother rabbit year birth should be controlled at 3 ~ 4 nest.
6.掌握种兔的使用年限。一般来说,种兔的使用年限为2~4年,如果体质健壮的可适当延长1~2年,体质繁殖力较差的,应提前淘汰。
6 to master the use life of rabbits. In general, the rabbit's life for 2 to 4 years, if the healthy body can be appropriately extended 1 ~ 2 years, physical fertility poor, should be eliminated in advance.
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