Seo Jin-Kyu, Eom Jeong-Uk, Yang Han-Sul
Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea.
Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea.
J Anim Sci Technol. 2023 Sep;65(5):1081-1093. doi: 10.5187/jast.2023.e21. Epub 2023 Sep 30.
This study aimed to compare meat quality traits between Berkshire and crossbreed (Landrace × Yorkshire × Duroc), and to investigate the relationship between meat quality traits and fatty acid composition. 20 Berkshire and 20 crossbreed pigs were used to compare pork loin quality and to determine the relationship between measured variables. 23 variables were measured including proximate composition, pH, drip loss and cooking loss, Warner-Bratzler shear force, and fatty acid composition. Berkshire had higher moisture content, pH, water-holding capacity, saturated fatty acids, and redness than the crossbreed pig ( < 0.05). The fat content and polyunsaturated fatty acid were low ( < 0.05) in Berkshire. Correlation analysis showed a negatively correlation between moisture and fat content, and a positively correlation between saturated fatty acid and fat content. Moreover, saturated fatty acid and polyunsaturated fatty acid were negatively correlated. As a result of factor analysis and partial least square regression, saturated fatty acid and polyunsaturated fatty acid were estimated to be the main factors affecting quality characteristics of pork. Pig breed is associated with differences in meat quality, and fatty acid composition can have an effect on meat quality parameters.
本研究旨在比较伯克夏猪与杂交猪(长白猪×约克夏猪×杜洛克猪)的肉质性状,并研究肉质性状与脂肪酸组成之间的关系。选用20头伯克夏猪和20头杂交猪来比较猪里脊肉品质,并确定所测变量之间的关系。共测定了23个变量,包括近似成分、pH值、滴水损失和烹饪损失、沃纳-布拉茨勒剪切力以及脂肪酸组成。伯克夏猪的水分含量、pH值、持水能力、饱和脂肪酸含量和肉色均高于杂交猪(<0.05)。伯克夏猪的脂肪含量和多不饱和脂肪酸含量较低(<0.05)。相关性分析表明,水分与脂肪含量呈负相关,饱和脂肪酸与脂肪含量呈正相关。此外,饱和脂肪酸与多不饱和脂肪酸呈负相关。因子分析和偏最小二乘回归结果表明,饱和脂肪酸和多不饱和脂肪酸是影响猪肉品质特性的主要因素。猪的品种与肉质差异有关,脂肪酸组成会对肉质参数产生影响。