猪体重与胴体性能及肉质性状的相关性研究  

Study on Correlation of Carcass Performance,Meat Quality and Weight of Finishing Pigs

作　　者：郭建凤[1] 王诚[1] 蔺海朝[1] 刘畅[1] 张印[1] 武英[1] 

机构地区：[1]山东省农业科学院畜牧兽医研究所,山东济南250100

出　　处：《家畜生态学报》2011年第5期34-38,共5页Journal of Domestic Animal Ecology

基　　金：国家生猪产业技术体系(CARS-36-11B);山东省农业良种工程资助项目(2009LZ08)(2009LZ013-01)

摘　　要：研究测定了80~140 kg体重阶段100头育肥猪的胴体品质和肉质特性,以分析猪胴体性能、肉质性状随体重的变化规律及其相关程度,为确定适宜上市屠宰体重提供依据。结果表明,80~100 kg体重阶段,随体重增大,瘦肉率显著降低;100~140 kg体重阶段,胴体直长、胴体斜长和眼肌面积随屠宰体重升高而极显著升高。胴体和肉质性状间相关程度有强有弱,相关系数有正有负。相同性状间有较强的正相关,相反性状间有较强的负相关。在80~140 kg阶段,胴体重、屠宰率、胴体直长、胴体斜长、眼肌面积、后腿比例、平均背膘厚、瘦肉率、皮脂率、a和b值与体重之间呈显著的回归关系,其它指标与体重间的线性相关不显著。Carcass performance and meat quality of 100 finishing pigs of 80~140 kg body weight were studied.And the changing pattern and the degree of correlation of carcass and meat quality accompanying body weight were analyzed.The results showed that at the stage of 80~100 kg with the weight increase,lean meat percentage decreased significantly.At the stage of 100~140 kg,with the weight increase,carcass straight length,carcass slanting length,eye muscle area increased extremely.The correlation degree of carcass traits and meat traits were either strong or weak,correlation coefficients were either positive or negative.The same traits had strong positive correlation,the adverse traits had strong negative correlation.In the 80~140kg body weight stage,carcass weight,dressing percentage,carcass straight length,carcass slanting length,eye muscle area,ham percentage,average fatback thickness,lean percentage,skin and fat percentage,a,b and the body weight presented remarkable regression relations,and the linear correlation between other indexes and body weight was not obvious.

关 键 词：育肥猪 屠宰性能 肉质性状 相关关系 

分 类 号：S811.5[农业科学—畜牧学]