关键词: 产毛量, 杂种优势, 级进杂交, 繁殖力, 产量, 试验, 体重

Abstract: The grading cross-experiment was carried out with the China Angora Rabbit as the female parent and the German Angora Rabbit as the male parent. The result proves that:the average amount of the mulative fur production of two batches of the female rabbits of F₁ generation is respectively 401.85g and 486.97g, which has repectively increased by 123% and 170% compared with the annual fur output of about 180g of the former China Angora Rabbits in Sichuan province. The frequency of the hybrid vigour is respectively 19.638% and 20.01%, and the frequency of the heterosis of the gain of the body weight of the female rabbits of F₁ generation at the age of 70 days,of 100 days,of 180 days and in the adult period is respectively 32.57%, 27.58%, 11.70% and 0.62%, and also the frequency gradually weakens as the age increases.

Key words: WOOL PRODUCTION, HYBRID VIGOR, GRADING, FECUNDITY, YIELD, EXPERIMENT, BOOY WEIGHT