【摘要】 在毛皮生产最佳时期对鲁北洼羊羔羊进行了屠宰率、体尺及体重等测定，分析结果表明：①屠宰率与日龄相关显著（Ｐ＜０．０５），其回归方程为ｙ＝５０．１１－０．０５ｘ；②屠宰率与体高（ｘ１）、体长（ｘ２）、胸围（ｘ３）、十字部高（ｘ４）呈负相关；③屠宰率的估测公式为ｙ＝５４．５９０７－０．０１８０ｘ１－０．００８３ｘ２－０．００６７ｘ３－０．０１８０ｘ４（Ｐ＜０．０５）。更多还原

【Abstract】 The dressing percentage, the body measurements and the body weight. et al.in 12 Lubei depression sheep were studied. The results are as follows: 1. the dressing percentage is correlative significantly with the ages, the regression equation betweem them is y=50. 11-0. 05x ; 2. the dressing percentage is correlative negatively with the height at withers (x1),the body length(x2), the heart girth (x3) and the height at hip cross (x4) ; 3. evaluation formula of the dressing percentage is y= 54. 5907-0. 0180x1 -0. 0083x2-0. 0067x3-0. 0180x4 (P<0. 05)更多还原