浅议种猪背膘厚和眼肌测定  

Determination of fat thickness and loin eye muscle of breeding pigs

作　　者：刘敬顺 刘珍云 王青来 陈赞谋 吴珍芳[1,2] 蔡更元 LIU Jingshun;LIU Zhenyun;WANG Qingai;CHEN Zanmou;WU Zhenfang;CAI Gengyuan(Guangdong Wens Pig Breeding Co.,Ltd.,Xinxing 527400,China;National Engineering Research Center for Swine Breeding Industry/College of Animal Science,South China Agriculture University,Guangzhou 510642,China)

机构地区：[1]广东温氏种猪科技有限公司,广东新兴527400 [2]国家生猪种业工程技术研究中心/华南农业大学动物科学学院,广东广州510642

出　　处：《华南农业大学学报》2019年第S01期151-154,共4页Journal of South China Agricultural University

基　　金：全国优质瘦肉型猪联合攻关项目(19190536);广东省重点领域研发计划(2018B020203002)。

摘　　要：随着养猪业大规模产业化发展,我国猪肉市场链效应已形成并逐渐绷紧,体现在对上市肉猪大体重、胴体瘦肉率高和肉质表现好的多重需求。当前商品肉猪生产的目标之一是大体重上市,但实现大体重上市后背膘厚增加,多余的肥肉越来越受到城乡居民的抵制。肉质表现方面,无论从基因水平(氟烷杂合子个体在体重大时更接近纯合阳性猪)、还是屠宰工艺革新的延迟(眼肌面积大和肌肉更厚造成中心温度更难冷却)都不利于猪肉品质的保障和提高。本文拟从胴体瘦肉率这一市场要求出发,浅议种猪活体背膘厚、眼肌面积和眼肌深度测定,以满足胴体按质定价需求的科学仪器选择。With the large-scale development of pig industry,the pork market chain effect has been formed and gradually tightened in China,which reflected in multiple demands of market pigs including large body weight,high carcass lean ratio and better meat quality.One of the goals of current commercial pork production is the big market weight,but the problem is backfat thickness increasing subsequently,the excess fat is resisted by more and more urban and rural residents.The meat quality performance,both the gene level(halothane heterozygous individuals in large weight are closer to the homozygous positive pigs)and delay in the slaughter process innovation(large eye muscle area and thick eye muscle depth cause central temperature to be harder to cool),are not conducive to guarantee and improve meat quality.This paper expounds the measuring of back fat,loin eye muscle area and eye muscle depth of live breeding pig according to the carcass lean ratio of market requirement,and for selecting scientific instrument to meet the needs of pricing the carcass.

关 键 词：种猪 背膘厚 眼肌面积 瘦肉率 

分 类 号：S828[农业科学—畜牧学]