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“953”巨型高产长毛兔新品系培育研究(Ⅱ)——横交固定与继代选育效果

Studies on Breeding of"953"Huge High-yield New Strain Wool Rabbit (Ⅱ) —The Results of Crossbred Fixing and Generation Breeding
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摘要 从5000余只杂种兔中,按公母比例1∶8选择300余只体重大、产毛量高的个体进行横交固定,经过4个世代的选育,兔只(11月龄)平均体重达5386克,年产毛量1424克,粗毛率11.74%,结块率2.24%,胎产活仔7.26只,料毛比43∶1。种兔外貌特征一致,遗传性能稳定。现有核心群种兔1200只,繁殖群7200只,生产群2.5万余只,向省内外推广繁育28万只,各项生产指标均达到或超过预定标准及全国家兔育种委员会制定的“德系长毛兔种兔鉴定标准”和“粗毛型长毛兔的选育指标”。 Selected from over 5000 crossbred rabbits, 300 with heavy weight and high wool production were fixed in sexual rate 1∶8 (male∶female). After 4 generations breeding, their productivities performance was follow: the adult (11 mths) weight was 5386g, the annual wool yield 1424g, the survial number at birth 7.26 head, the rate of coarse wool was 11.74%, the rate of twining wool 2.24%, the ratio of feed to wool was 43:1. They were similar in appearance character and whose heredity was stable. Now there are 1200 rabbits acted as the nucleus herds, 7200 rabbits as the breeding group and over 25000 rabbits as the production group, 280 thousand breeding rabbits have been spreaded over Henan province. All above have reached or exceeded the estimated targets.
出处 《中国养兔杂志》 1998年第2期11-19,共9页 Chinese Journal of Rabbit Farming(CJRF)
关键词 长毛兔 杂交育种 品系培育 选育效果 Angora rabbit, Crossbreeding,Strain breeding
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