摘要:
利用福建黄兔保种群,采用家系内个体综合指数法,纯种选育福建黄兔父系。结果表明:第3世代公、母兔4、10、13周龄的体重比第1世代同期体重提高7.4%～13.2%,差异均极显著(P0.01);公、母兔4至13周平均日增重分别为17.55 g、18.25 g,比第1世代分别提高9.6%、12.4%;第3世代公、母兔13周龄的体长、胸围、耳长、耳宽比第1世代提高3.1%～13.7%,差异均极显著(P0.01);第3世代公、母兔13周龄体重变异系数与第1世代相比均有下降,13周龄的体长、胸围、耳长、耳宽的变异系数在3个世代内均小于1 2%,体型外貌均匀整齐;3个世代的产仔数和各世代内公、母兔13周龄性别间体重差异均不显著(P0.05)。
Abstract:
To breed a specific male line,255 pure bred Fujian yellow rabbits(30 male and 225 female animals) were selected according to the individual composite index in the animal’s family population.The results showed that the rabbit’s body weights at the ages of 4-,10-and 13-week in the 3rd generation were higher than those in the 1st generation(P0.01).The body weight increase ranged from 7.4%to 13.2%.The average daily weight gains of the males and female rabbits,at the ages of 4 to 13 weeks,in the 3rd generation were 17.55g and 18.25g,respectively, representing 9.6%and 12.4%,respectively,higher than those in the 1st generation(P0.01).The rabbit’s body length,chest girth,ear length and ear width at the age of 13-week in the 3rd generation were 3.1%to 13.7%greater than those in the 1st generation.The coefficients of variation on body weight decreased,as compared to those for the 1st generation.The coefficients of variation on body length,chest girth,ear length and ear width at the age of 13-week were lower than 12%for both generations.The body size and appearance of the rabbits in the 3 generations were uniform.No significant differences was found on the numbers of newborn,nor the body weights of the male and female rabbits at the age of 13-week,in 3 generations.
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