PIC猪胴体性状和肉质性状研究及相关性分析  

Analysis on Carcass Traits and Meat Quality Traits of PIC Pigs and Their Correlation

作　　者：任慧波[1] 崔清明[1] 杜丽飞[1,2] 朱吉 邓缘[1] 胡雄贵[1] 左剑波[1] 刘莹莹[1] 李华丽[1] 喻国均[1] 陈晨[1] 彭英林[1] REN Huibo;CUI Qingming;DU Lifei;ZHU Ji;DENG Yuan;HU Xionggui;ZUO Jianbo;LIU Yingying;LI Huali;YU Guojun;CHEN Chen;PENG Yinglin(Hunan Institute of Animal and Veterinary Science,Changsha Hunan 410131,China;Hunan Xinguang'an Agricultural Husbandry Co.,Ltd,Changsha Hunan 410100,China)

机构地区：[1]湖南省畜牧兽医研究所,湖南长沙410131 [2]湖南鑫广安农牧股份有限公司,湖南长沙410100

出　　处：《家畜生态学报》2025年第2期35-40,共6页Journal of Domestic Animal Ecology

基　　金：湖南省重点实验室开放研究基金项目(2017TP1030);湖南省创新平台与人才计划种业创新项目(2021NK1009);湖南省自然科学基金项目(2021JJ30386);湖南省重点研发计划项目(2020NK2024);湖南省科技特派员服务乡村振兴项目(2021NK4218);湖南生猪产业技术体系建设项目;长沙·中国隆平种业硅谷专项。

摘　　要：为了评价PIC猪的胴体性状和肉质性状,试验屠宰了健康的PIC猪9头,测定了其胴体性状、肉质性状和肌肉成分等相关指标,并分析了各性状间的相关性。结果表明,宰前活重为123.78 kg的PIC猪,屠宰率为75.58%,瘦肉率为60.8%,平均背膘厚25.62 mm,眼肌面积45.95 cm 2,滴水损失2.14%,嫩度43.56N,肌内脂肪含量2.23%,总氨基酸含量20.3%,饱和脂肪酸含量41.54%,总不饱和脂肪酸含量58.44%。性状间相关性分析表明,PIC猪的宰前活重与屠宰率呈显著正相关(P<0.05),肌内脂肪与MUFA呈极显著正相关(P<0.01),与PUFA呈极显著负相关(P<0.01),与水分呈显著负相关(P<0.05)。肌内脂肪与水分间的相关系数为-0.718,二者间线性模型Y=-0.9985x+75.299,决定系数R^(2)为0.5153。In order to evaluate the carcass traits and meat quality traits of PIC pigs,a study was conducted involving the slaughter of 9 healthy PIC pigs.Various indicators regarding carcass traits,meat quality traits and muscle composition were measured,and the correlations among these traits were analyzed.The results showed that when the preslaughter live weight of PIC pigs was 123.78 kg,the slaughter percentage,lean percentage,average back fat thickness,loin eye area,drip loss,tenderness,intramuscular fat content,total amino acids content,saturated fatty acid content,and unsaturated fatty acid content was 75.58%,60.8%,25.62 mm,45.95 cm 2,2.14%,43.56 N,2.23%,20.3%,41.54%,and 58.44%,respectively.Correlation analysis among traits revealed significantly positive correlation between pre-slaughter live weight and dressing percentage(P<0.05).Additionally,the intramuscular fat content displayed a highly significant positive correlation with MUFA(P<0.01)and a notably negative correlation with PUFA(P<0.01)and water content(P<0.05).The correlation coefficient between intramuscular fat content and water content was-0.718,and the linear model between the two was Y=-0.9985x+75.299,with a coefficient of determination R^(2) of 0.5153.

关 键 词：PIC猪 胴体性状 肉质性状 脂肪酸 氨基酸 相关性分析 

分 类 号：S828.1[农业科学—畜牧学]