笼养金定鸭母鸭体尺和屠宰性能测定及其相关性分析

发布时间：2019-06-19 05:25

【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(P0.05);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(P0.05);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(P0.01);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(P0.01)。
[Abstract]:The body size traits and slaughtering performance of Jinding duck were measured at 112 days of age, and the correlation among the indexes was analyzed in order to select the breeding traits of Jinding duck and give full play to and make full use of the resource advantages of Jinding duck. The results showed that the coefficients of variation of chest width, chest depth and hip bone width were 7.97%, 8.15% and 7.25%, respectively, and the coefficients of variation of breast muscle quality, breast muscle rate, leg muscle mass, leg muscle rate, lean meat quality, lean meat rate, skin mass and sebaceous percentage were above 11%, and the coefficients of variation of abdominal fat quality and abdominal fat rate were higher than 50%. There was a significant positive correlation between keel length and shank length, keel length and semi-bore mass, shank circumference and abdominal fat quality (P 0.05), and a significant negative correlation between body oblique length and semi-eviscerated percentage, body oblique length and abdominal fat mass, shank length and sebaceous percentage (P 0.05). There was a significant positive correlation between slaughter precursor quality and slaughter quality, slaughter mass and half (total) bore quality, slaughter rate and half (total) evisceration rate, breast (leg) muscle quality and lean meat quality (P01), and there was a very significant negative correlation between slaughtering precursor quality and slaughtering rate and semi-evisceration rate, body oblique length and shank circumference (P01), and there was a significant positive correlation between slaughter precursor quality and slaughtering rate and semi-evisceration rate, body oblique length and shank circumference (P01).
【作者单位】：佛山科学技术学院医学院;佛山科学技术学院生命科学与工程学院;
【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)
【分类号】：S834

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