过去收购生猪一直凭手摸眼估定价,准确率只有60%左右。为了实行生猪收购验质定等科学化,商业部提出了“生猪定等仪”的科研项目。巳由黑龙江省食品公司研制成功,其定等准确率可达85%,定等不准确的也只差一个等级;出肉率误差在2.9以内的占94%,在2以内的占89%。 In the past, the purchase of live pigs has been assessed by hand, with an accuracy of only about 60%. In order to implement the science of hog acquisition and quality assurance, the Ministry of Commerce proposed a scientific research project of “Pigs and other equipment.”巳 was successfully developed by the Heilongjiang Province Food Company, the accuracy rate of which was as high as 85%, and it was only one grade when the level was inaccurate; 94% of the meat rate error was less than 2.9, and 89% was less than 2.