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Position: Home > Articles > Prediction of Weight and Percent of Retail Cuts of Kerchin Cattle MEAT RESEARCH 2010 (3) 60-64

科尔沁牛产肉量与净肉率预测模型建立

作  者：
夏玉伟;李开雄;孙宝忠;贾恩棠;马长伟
单  位：
石河子大学食品学院;内蒙古科尔沁牛业股份有限公司;中国农业大学食品科学与营养工程学院
关键词：
科尔沁牛;产肉量;净肉率;预测方程
摘  要：
在活牛屠宰线上,为了较快地预测胴体产肉量和净肉率,并按照不同产肉性能对牛胴体进行等级划分,以建立科学合理的优质优价收购体系,本研究选取60头成年科尔沁牛,对其进行屠宰、冷却、分割,分别测定牛体活重(LW)、热胴体重(HCW)、眼肌面积(REA)、背膘厚度(FT)等指标,采用SPSS16.0软件对数据进行相关分析和线性回归,最终得到以牛胴体重(HCW)、牛体活重(LW)和眼肌面积(REA)三因子共同预测产肉量的线性方程Y1=-7.357+1.122×HCW-0.155×LW+0.077×REA(R2=0.986,RMSE=2.842)和预测净肉率的线性方程Y2=42.971+0.182×HCW-0.098×LW+0.021×REA(R2=0.930,RMSE=0.516),结果表明两个方程均可在实际生产中用于科尔沁牛产肉量和净肉率的预测。
译  名：
Prediction of Weight and Percent of Retail Cuts of Kerchin Cattle
作  者：
XIA Yuwei, LI Kaixiong, SUN Baozhong, JIA Entang, MA Changwei
关键词：
Kerchin cattle; weight of retail cuts; percent of retail cuts; regression equation
摘  要：
This study was conducted to quickly predict the weight and percent of retail cuts on the cattle slaughtering line, to grade Kerchin cattle according to their carcass quality and to realize the policy of selling good quality cattle at a high price. 60 Kerchin cattle were slaughtered, chilled and cut. Cattle quality were measured as prediction of weight and percent of retail cuts. The predictors were used to construct by correlation analysis and multiple linear regression based on the SPSS 16.0. The equations for prediction of weight and percent of retail cuts were Y1=--7.357 + 1.122× HCW -0.155 × LW + 0.077 × REA (R2 =-0.986, RMSE =-2.842) and Y2=-42.971 + 0.182 × HCW-0.098 × LW + 0.021 × REA (R2=-0.930,RMSE =-0.516), respectively. The equations obtained could be used for prediction of weight and percent of retail cuts of Kerchin cattle.

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