An Ji Seon, Lee Ji Hwan, Song Min Ho, Yun Won, Oh Han Jin, Kim Yong Ju, Lee Jun Soeng, Kim Hyeun Bum, Cho Jin Ho
Division of Food and Animal Science, Chungbuk National University, Cheongju 28644, Korea.
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
J Anim Sci Technol. 2021 Mar;63(2):332-338. doi: 10.5187/jast.2021.e31. Epub 2021 Mar 31.
The objective of this study was to predict body compositions of live pigs using bioelectrical impedance procedures. In experiment 1, 32 crossbred (Duroc × Landrace × Yorkshire) finishing pigs with an average weight at 84.06 kg were used. In experiment 2, 96 crossbred (Duroc × Landrace × Yorkshire) finishing pigs with an average weight at 88.8 kg were used. A four-terminal body composition analyser was utilized to determine fat percentage. Lean meat percentage and backfat thickness were measured with a lean meat measuring meter. In experiment 1, fat percentage was not significantly correlated with lean meat percentage, although a tendency ( < 0.1) of a negative correlation was found. Backfat thickness was significantly correlated with fat percentage and lean meat percentage ( = 0.745 and = -0.961, respectively). Coefficients of determination for fat percentage with lean meat percentage, fat percentage with backfat thickness, and backfat thickness with lean meat percentage were 0.503, 0.566, and 0.923, respectively. In experiment 2, fat percentage was significantly correlated with lean meat percentage ( = -0.972). Backfat thickness was also significantly correlated with fat percentage and lean meat percentage ( = 0.935 and = -0.957, respectively). Results of this study indicate that bioelectrical impedance analysis might be useful for predicting body compositions of live finishing pigs.
本研究的目的是使用生物电阻抗法预测生猪的体成分。在实验1中，使用了32头平均体重为84.06千克的杜洛克×长白×约克夏杂交育肥猪。在实验2中，使用了96头平均体重为88.8千克的杜洛克×长白×约克夏杂交育肥猪。使用四端体成分分析仪测定脂肪百分比。用瘦肉测量仪测量瘦肉百分比和背膘厚度。在实验1中，脂肪百分比与瘦肉百分比之间无显著相关性，尽管发现有负相关趋势（<0.1）。背膘厚度与脂肪百分比和瘦肉百分比显著相关（分别为=0.745和=-0.961）。脂肪百分比与瘦肉百分比、脂肪百分比与背膘厚度、背膘厚度与瘦肉百分比的决定系数分别为0.503、0.566和0.923。在实验2中，脂肪百分比与瘦肉百分比显著相关（=-0.972）。背膘厚度也与脂肪百分比和瘦肉百分比显著相关（分别为=0.935和=-0.957）。本研究结果表明，生物电阻抗分析可能有助于预测育肥生猪的体成分。
