| 德系安哥拉母兔的繁殖性能 |
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| 引用本文： | 张凤扆,翁旗华.德系安哥拉母兔的繁殖性能[J].上海交通大学学报(农业科学版),1987(4). |
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| 作者姓名： | 张凤扆 翁旗华 |
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| 作者单位： | 上海农学院牧医系，上海农学院牧医系 |
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| 摘 要： | 统计表明,德系安哥拉母兔平均产仔6.73头,仔兔断奶成活率82.39%。产仔力的重复力0.32,1～6胎次的平均产仔数非常接近,7胎以后明显下降。产仔力与母兔成年体重和年产毛量的相关系数极低,分别为0.265和0.114。随着产仔数增加,哺乳期仔兔死亡数也上升。笔者提出,母兔的平均产仔数以6～7.5头为适宜。
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| 关 键 词： | 产仔数 断奶成活率 重复力 相关系数 哺乳期仔兔死亡数 |
THE REPRODUCTIVE PERFORMANCE OF GERMAN ANGORA DOES |
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| Zhang Fengyi Weng Qihua.THE REPRODUCTIVE PERFORMANCE OF GERMAN ANGORA DOES[J].Journal of Shanghai Jiaotong University (Agricultural Science),1987(4). |
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| Authors: | Zhang Fengyi Weng Qihua |
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| Abstract: | An investigation was conducted as for the reproductive performance of the German angora does purebred on our college farm.The result showed an average litter size of 6.73,a survival rate of 82.39% for their kits at weaning,arepea- tability of 0.32 for the litter size,and litter sizes very similar to one another from parity one to parity six but significantly reduced for the later parities.The correlation coefficients were as low as 0.265 and 0.114 between litter size and adult body weight,and between litter size and annual wool production,respect- ively.The mortality of the kits before weaning increased with the increase of litter size.The authors suggested an litter size of 6-7.5 as the optimum. |
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| Keywords: | Litter size Survival rate at weaning Repeatability Correlation coefficient Mortality before weaning |
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