| 摘要: |
| 对猪的Ag-NORs与其肥育性能相关分析结果表明,二者间呈显著负相关。猪品种的Ag-NORs均数、8Ag-NORs+平均染色体型频率与日增重和瘦肉率间的相关系数分别为-0.5968(P<0.01)和一0.6235(P<0.005);-0.6550(P<0.005)和-0.7036(P<0.001);个体的Ag-NORs均数、8Ag-NORs+染色体型频率与日增重的相关亦高达-0.6591(P<0.05)和-0.4984(0.1>P>0.05)。Ag-NORs有可能作为一项选种指标,用于猪肥育性能的选择。 |
| 关键词: 染色体带型,遗传标记,胴体瘦肉量,日增重,猪 |
| DOI： |
| 分类号: |
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| A Study on the Correlation Between Ag-NORs and Fattening Performance in Swine (First Report) |
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Liu Wansheng Lu Xingzhong Liu Xiaodun,Liu Wansheng Lu Xingzhong Liu Xiaodun,Liu Wansheng Lu Xingzhong Liu Xiaodun
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| Abstract: |
| The correlation between Ag-NORs and fattening performance in swine was analysed in this study. The result showed that there was a significant negative correlation between them. In pig breeds, the correlation coefficients between the mean of Ag-NORs, 8Ag-NORs+ average chromosome-type frequencies and daily gain, lean meat percentage were -0.5968(P<0.01) and -0.6235(P<0.005); -0.6550(P< 0.005) and -0.7036(P< 0.001) respectively. In individuals, the correlation coefficients between the mean of Ag-NORs, 8Ag-NORs+ chromosome-type frequencies and daily gain were -0.6591(P<0.05) and -0.4984(0.1 >P>0.05). There was a tendency that Ag-NORs could be used as a selection criterion for fattening performance in swine. |
| Key words: chromosome banding patterns, genetic marker, carcass lean yield, daily gain, pigs |
