| B超活体测定猪背膘厚和眼肌面积的研究 |
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| 引用本文： | 王重龙,陶立,张勤,张东红,李庆岗,刘卫东.B超活体测定猪背膘厚和眼肌面积的研究[J].安徽农业科学,2005,33(3):451-452,495. |
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| 作者姓名： | 王重龙 陶立 张勤 张东红 李庆岗 刘卫东 |
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| 作者单位： | 1. 安徽省农业科学院畜牧兽医研究所,安徽合肥,230031
2. 中国农业大学动物科技学院,北京,100094 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 应用B超仪对 3个猪种共 2 0头猪的背膘厚、眼肌面积进行了活体测定 ,分析其测定结果与A超活体、屠宰后胴体及胴体瘦肉率的关系 ,探讨B超在猪育种中的应用价值。结果表明 :同一性状B超活体测定值与A超活体、胴体之间的相关性极显著 (p <0 .0 1) ;B超活体测定猪背膘厚与胴体瘦肉率为负相关 ,B超活体测定眼肌面积与胴体瘦肉率为正相关 ,皆达极显著水平 (p <0 .0 1) ,并建立了胴体瘦肉率对B超活体测定背膘厚和眼肌面积的二元线性回归方程。
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| 关 键 词： | B超活体测定 猪 背膘厚 眼肌面积 瘦肉率 |
| 文章编号： | 0517-6611(2005)03-0451-02 |
Study on Measuring Backfat Thickness and Loin Eye Muscle Area of Living Pig by B-mode Ultrasound Machine |
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| WANG Chong-long et al.Study on Measuring Backfat Thickness and Loin Eye Muscle Area of Living Pig by B-mode Ultrasound Machine[J].Journal of Anhui Agricultural Sciences,2005,33(3):451-452,495. |
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| Authors: | WANG Chong-long |
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| Abstract: | living pigs from 4 breeds were scanned to measure their backfat thickness and loin eye muscle area by B-mode ultrasound machine. These measurements were compared with living measurements by A-mode ultrasound machine and measurements of carcasses after slaughtered.20 carcasses had a full cutout to determine the real lean percentage.Results showed that the correlations between with the living measurement and measurements in the other two methods at the same trait were significant (p<0.01). There were a negative correlation between backfat thickness with B-mode ultrasound machine and carcass lean percentage and a positive correlation between loin eye muscle area with B-mode ultrasound machine and carcass lean percentage, and the correlations were significant (p<0.01).A duality linear regression equation was developed to predict carcass lean percentage from live measurements with B-mode ultrasound. |
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| Keywords: | Living measurement with B-mode ultrasound Pig Backfat thickness Loin eye muscle area Lean percentage |
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