【摘要】 利用肉鸡ＳＲ９２Ａ系（♂）与萧山鸡（♀）的杂交一代群体，以ＥＡＶ（禽内源性反转录病毒片段）为探针，限制性内切酶为ＥｃｏＲⅠ，探讨ＤＮＡ指纹条带数目与若干屠宰性能之间的相关性。结果发现，条带总数与各性状均呈负相关，即条带总数越多，性状值越低，但只有与胸肌重的相关系数达到显著水平（Ｐ＝０．０２３４＜０．０５）。携带１０个条带的个体胸肌重比携带１６个条带的个体平均值高出７８．２２％。研究结果初步表明，ＥＡＶ产生的ＤＮＡ指纹条带总数可作为改良或预测鸡屠宰性能的遗传标记。更多还原

【Abstract】 This study revealed correlations between the number of DNA fingerprint (DFP) bands carried by individuals and meat production traits of SR92A (♂)×Xiaoshan (♀) hybrids with EAV (endogenous avian retroviral element) as the probe The results showed that the larger the total number of DFP bands, the lower the values of the traits, but the significant correlation only existed between number of DFP bands and the weight of chest muscle The number of DFP bands maybe be used as one of markers in improving or predicting quantitative traits更多还原