广东小耳花猪与杜洛克杂交效果分析  

Analysis on the effect of hybridization between Guangdong smallear spotted pig and Duroc

作　　者：张洁[1] 李宝红[1] 孟繁明[1] 胡斌[1] 梁柳浪 李剑豪[1] 

机构地区：[1]广东省农业科学院动物科学研究所畜禽育种国家重点实验室广东省动物育种与营养公共实验室广东省畜禽育种与营养研究重点实验室,广东广州510640 [2]清远市龙发种猪有限公司,广东英德513057

出　　处：《广东畜牧兽医科技》2017年第2期45-47,52,共4页Guangdong Journal of Animal and Veterinary Science

摘　　要：本研究通过比较杜洛克×小耳花与广东小耳花的胴体性状和肉品质,旨在为广东小耳花猪的保种和合理利用提供科学依据。试验选择出生日龄相近,健康的杜洛克(♂)×小耳花(♀)和广东小耳花阉公猪各3头,测定其胴体性状和肉品质,结果表明:(1)在相同的养殖环境及相近的屠宰日龄条件下,杜洛克×小耳花与广东小耳花猪相比,其胴体重提高86.15%,背膘厚降低3.2mm,眼肌面积增加121.96%,瘦肉率提高11.76%,胴体斜长增加30 cm,差异显著(P<0.05);(2)两者的背最长肌p H值(宰后45min和24h)、肉色、大理石纹、滴水损失差异均不显著(P>0.05)。综上所述,采用杜洛克与小耳花杂交能显著提高其后代的胴体重、眼肌面积和瘦肉率,且保留了母本皮薄肉嫩、味道鲜美可口的特点,是一种较为理想的杂交模式。This study was compared the carcass traits and pork quality of Duroc×small-ear spotted pigand Guangdong small-ear spotted pig.The aim of the study was to provide the scientific basis for the conservation and rational utilization of Guangdong small-ear spotted pig. The test selected the birth age similar and healthy Castrated boar of Duroc（♂）×small-ear spotted pig（♀） and Guangdong small-ear spotted pig each three,to determinate the carcass traits and pork quality. The results show：（1） under the conditions of the same feeding environment and slaughter day, comparison between Duroc×small-ear spotted pig and Guangdong small-ear spotted pig, the carcass weight increased by 86.15%,the backfat thickness decreased 3.2mm,the loin eye area increasea by 121.96%, the lean meat rate increasea by 11.76%, the oblique length of carcass increasea by 30cm, their difference were significant （P 〈0.05）;（2） Comparison between the two,the difference of the longissimus dorsi pH（45min and 24h after slaughter） and meat color marbling and drip loss were not significant （P〉 0.05）. In conclusion, the hybrid offspring between Duroc and Guangdong small-ear spotted pig can significantly improve the weight of carcass,the loin eye area,the lean meat rate, and retains their mother＇characteristics of thin skin,tender, delicious.This is an ideal hybrid model.

关 键 词：广东小耳花猪 杂交利用 胴体性状 猪肉品质 

分 类 号：S813.22[农业科学—畜牧学]