笼养金定鸭母鸭体尺和屠宰性能测定及其相关性分析  

Measurement of the Body Size and Carcass Traits of Jinding Partridge Duck Reared in Cage and Analysis on the Correlations Between Different Traits

作　　者：陈希萍[1] 景栋林 李浩杰 姜慧绘 

机构地区：[1]佛山科学技术学院医学院,广东佛山528000 [2]佛山科学技术学院生命科学与工程学院,广东南海528231

出　　处：《河南农业科学》2017年第10期148-152,共5页Journal of Henan Agricultural Sciences

基　　金：广东省科技计划项目(2014A020208141);佛山市科技创新专项资金项目(2014AG10004;2015GA10015)

摘　　要：测定112日龄笼养金定鸭母鸭体尺性状和屠宰性能,并分析了各指标间的相关性,以期选择金定鸭的选育性状,充分发挥和利用金定鸭的资源优势。结果表明,在体尺性状中,以胸宽、胸深和髋骨宽的变异系数较大,分别为7.97%、8.15%和7.25%;在屠宰性状中,胸肌质量、胸肌率、腿肌质量、腿肌率、瘦肉质量、瘦肉率、皮质量和皮脂率的变异系数均在11%以上,腹脂质量和腹脂率的变异系数均高于50%;龙骨长与胫长、龙骨长与半净膛质量、胫长与半净膛质量、胫围与腹脂质量等性状间呈显著正相关(P<0.05);体斜长与半净膛率、体斜长与腹脂质量、胫长与皮脂率等性状间呈显著负相关(P<0.05);宰前体质量与屠体质量、屠体质量与半(全)净膛质量、屠宰率与半(全)净膛率、胸(腿)肌质量与瘦肉质量等性状间呈极显著正相关(P<0.01);宰前体质量与屠宰率和半净膛率、体斜长与胫围等性状间呈极显著负相关(P<0.01)。In order to determine the breeding traits and make use of the resource advantages of Jinding partridge ducks（ JDPD）,the body size and carcass traits of 112-day-old JDPD reared in cages were measured and the correlations between different traits were analysed. The results showed that in all body size traits,variation coefficients of breast width,breast depth and pelvis width were bigger（ 7. 97%,8. 15% and 7. 25% respectively）. Among slaughter traits,variation coefficients of breast muscle weight,percentage of breast muscle,leg muscle weight,percentage of leg muscle,lean meat weight,percentage of lean meat,skin weight and percentage of skin fat were above 11%,the variation coefficients of abdominal fat weight and percentage of abdominal fat were above 50%. There were significant positive correlations between fossil bone length and shank length,fossil bone length and half eviscerated weight,shank length and half eviscerated weight,shank circumference and abdominal fat weight（ P 0. 05）; significant negative correlations between body slope length and percentage of half eviscerated yield,body slope length and abdominal fat weight,shank length and percentage of skin fat（ P 0. 05）; and highly significantcorrelations existed between slaughter weight and carcass weight,carcass weight and（ half） eviscerated weight,dressed percentage and percentage of（ half） eviscerated yield,breast（ leg） muscle weight and lean meat weight（ P 0. 01）; highly negative significant correlations existed between slaughter weight and dressed percentage,slaughter weight and percentage of half eviscerated yield,body slope length and shank circumference（ P 0. 01）. It was concluded that breast width,breast depth,pelvis width,breast muscle weight,leg muscle weight,lean meat weight,skin weight and abdominal fat weight could be used as the alternative breeding target traits for meat strain of JDPD.

关 键 词：金定鸭 笼养 体尺 屠宰性能 相关分析 

分 类 号：S834[农业科学—畜牧学]