| 鲁北洼羊羔羊的屠宰率相关性研究 |
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| 引用本文： | 尹逊河,马玉忠.鲁北洼羊羔羊的屠宰率相关性研究[J].山东农业大学学报(自然科学版),1996,27(1):73-76. |
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| 作者姓名： | 尹逊河 马玉忠 |
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| 作者单位： | 山东农业大学动物科技学院 |
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| 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）。
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| 关 键 词： | 鲁北洼羊羔羊 屠宰率 日龄 体尺 相关性 |
EVALUATION OF DRESSING PERCENTAGE IN LUBEI DEPRESSION SHEEP |
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| Yin Xunhe, Ma Yuzhong, Wang Shuying,Liu Ziyi, Liu Faxiao.EVALUATION OF DRESSING PERCENTAGE IN LUBEI DEPRESSION SHEEP[J].Journal of Shandong Agricultural University,1996,27(1):73-76. |
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| Authors: | Yin Xunhe Ma Yuzhong Wang Shuying Liu Ziyi Liu Faxiao |
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| 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) |
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| Keywords: | Lubei depression sheep dressing percentage ages (days) body measurements correlation Note: Lubei denotes north of Shandong |
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