2个四元杂交配套系商品猪屠宰性能的比较研究  

Comparative Study on Slaughter Performance between Two Hybrid Combinations

作　　者：侯明俸[1] 孟繁明[2] 蔡更元 吴珍芳[1,2] 刘德武[2] 

机构地区：[1]广东温氏食品集团股份有限公司,广东新兴527400 [2]华南农业大学,广东广州510642 [3]广东省农业科学研究院,广东广州510642

出　　处：《中国畜牧兽医》2013年第9期127-130,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家863计划项目(2011AA100304);国家科技支撑计划项目(2011BAD28B01)

摘　　要：试验通过对64头皮杜×长大和18头皮杜×长蓝四元杂交配套系商品猪进行屠宰测定,以比较胴体和肉质性状的优劣,旨在为进一步从事优质猪肉的生产提供依据。结果表明：①在活体性状方面,皮杜×长蓝的活体肌内脂肪含量（intramuscular fat content,IMF）肩部最厚处背膘厚和最后肋背膘厚均极显著高于皮杜×长大（P〈0.01）,而屠体重和日增重极显著低于皮杜×长大（P〈0.01）;②在胴体性状方面,皮杜×长蓝的肩部最厚处背膘厚极显著高于皮杜×长大（P〈0.01）,胴体长和眼肌面积极显著低于皮杜×长大（P〈0.01）;③在肉质性状方面,皮杜×长蓝的IMF、pH1和大理石纹等指标均极显著高于皮杜×长大（P〈0.01）,肉色b指标极显著低于皮杜×长大（P〈0.01）,pH24 h和滴水损失显著低于皮杜×长大（P〈0.05）,同时皮杜×长蓝的嫩度比皮杜×长大更好;④2种配套商品猪的肉色评分均在3~4之间,属于正常肉色;pH1大于5.9,pH24 h小于6.0,表明肉质正常;皮杜×长大的IMF在1.5%~2.0%之间,皮杜×长蓝的IMF高于2.0%;2个品种的剪切力均小于4 kg,属于消费者喜欢的类型。Carcass and meat quality traits were determined by comparing 64 heads of （Pietrain×Duroc） （PD）× （Langdrance×Largewhite） （LY） crosses with 18 heads of （Pietrain×Duroc） （PD）×（Langdrance×Lantang） （LN） crosses in order to provide reference data on producing high quality pork. The results indicated that the PD×LN corsses were significantly higher than PD×LY crosses in the content of IMF, shoulder thickest backfat and the last rib backfat （P〈0.01） in live testing performance, while slaughter weight and daily gain were extremly significantly lower than the latter （P〈0.01）. In the carcass traits, the shoulder thickest backfat of PD×LN crosses were extremly significantly higher than PD×LY crosses （P〈0.01）, but lower in carcass length and longissimus muscle area （P〈0.01）. In meat quality traits among IMF, pH1, marbling and tenderness, the PD×LN crosses were better than PD×LY crosses （P〈0.01）, but worse in fleshcolor b （P〈0.01）, pH24 h and drop lose （P〈0.05）, at last both line crosses showed normal in meat color with score 3 to 4, and meat quality traits with pH1〉5.9 and pH24 h〈6, the IMF of the PD×LY was detected between 1.5% to 2.0%, the IMF value of the PD×LN crosses had exceed 2%, shear force of two breed was less than 4 kg. In conclusion, meat quality of the two crosses catered to consumer taste.

关 键 词：猪 屠宰测定 皮杜×长蓝 皮杜×长大 胴体性状 肉质性状 

分 类 号：S858.28[农业科学—临床兽医学]