Smith W C, Pearson G
Department of Animal Science, Massey University, Palmerston North, New Zealand.
Meat Sci. 1985;14(1):29-41. doi: 10.1016/0309-1740(85)90044-0.
Data from the physical and chemical dissection analysis of 50 Large White and 50 Hampshire × Large White carcasses, comprising equal numbers of gilts and castrates, slaughtered at 90 kg liveweight, are presented. The right-hand side of each carcass was dissected into lean, fat and bone and the combined tissues were then minced and chemically analysed for moisture, protein, ether extract and ash. Statistical relationships between the two methods of carcass analysis, except those between bone and ash, were not influenced by sex or breed type. Overall regression equations, i.e. ignoring sex and breed type, for the prediction of percentage lean from moisture, protein and ether extract percentages of the carcasses, had residual standard deviations of 1·26, 1·78 and 1·11, respectively, and corresponding values for the prediction of percentage carcass fat were 1·05, 1·68 and 0·74. Residual standard deviations for predicting percentages of moisture and protein in the carcass from percentage lean content were 1·07 and 0·46 and that for the prediction of percentage ether extract from fat percentage of the carcass was 1·20. Corresponding relationships between bone and ash percentages of the carcass were less satisfactory for predictive purposes.
本文展示了对50头大白猪和50头汉普夏×大白猪胴体进行物理和化学剖析分析的数据，这些猪只包括数量相等的小母猪和去势公猪，体重达90千克时屠宰。每头胴体的右侧被分解为瘦肉、脂肪和骨骼，然后将这些组织混合切碎并进行化学分析，测定水分、蛋白质、乙醚提取物和灰分。除骨骼和灰分之间的关系外，两种胴体分析方法之间的统计关系不受性别或品种类型的影响。用于根据胴体的水分、蛋白质和乙醚提取物百分比预测瘦肉百分比的总体回归方程（即忽略性别和品种类型），其剩余标准差分别为1.26、1.78和1.ll，预测胴体脂肪百分比的相应值分别为1.05、1.68和0.74。根据瘦肉含量百分比预测胴体水分和蛋白质百分比的剩余标准差分别为1.07和0.46，根据胴体脂肪百分比预测乙醚提取物百分比的剩余标准差为1.20。胴体骨骼和灰分百分比之间的相应关系在预测方面不太理想。
