【摘要】 应用逐步回归分析和正交优选方法，分析了冀东地区长汉约三元杂种猪８个数量性状与瘦肉率之间的回归关系，并通过稳定性检验证明：在合理的条件下，当胴体斜长和背膘厚取值越小，同时胴体直长、眼肌面积和后腿率取值越大时，则瘦肉率越高，并由试验找出了最优性状组合更多还原

【Abstract】 The regression relationship between 8 quantitative characters and lean meat percentage for Landrace Hamposhire Large yorkshire hybrid pigs from the east part of Hebei was analysed with multivariate successive regression and orthogonal optimum selection method.The result showed that in general condition,When carcass sloping length,backfat thickness were in a low level,and carcass straight length,loin eye area and ham ratio in a high level,the lean meat percentage was in a high level.At the same time,the best component of the characters was found by this experiment.更多还原