Hulsegge B, Engel B, Buist W, Merkus G S, Klont R E
Institute for Animal Science and Health (ID-Lelystad), PO Box 65, NL-8200 AB Lelystad, The Netherlands.
Meat Sci. 2001 Feb;57(2):191-5. doi: 10.1016/s0309-1740(00)00093-0.
Three experiments, involving over 56 000 veal carcasses, were carried out to develop a method for instrumental colour classification of veal carcasses at 45 min post mortem with the Minolta CR300. The method should produce results similar to those of the 10-point colour-system, which is currently in use in The Netherlands. In the first experiment, the colour of veal carcasses was visually assessed by three observers and instrumentally measured with two Minolta CR300 devices. The average of the results of the three observers and the two Minolta devices were used for discriminant analysis to analyse yield classification rules, which allowed to assignment of the carcasses to classes of the 10-point colour-system. Identical classifications for Minolta and observer were obtained for 63.2% of the carcasses. In the second and third experiment, the classification rules with the Minolta CR300 were used to predict the colour class. For the new samples, identical classification results were obtained for 50-55% of the carcasses. In 41-44% of the carcasses the classification results differed by less than one class. The results show that the Minolta CR300 is under practical conditions able to predict the 10-point colour classes and can be used for on-line colour classification in a slaughterhouse.
开展了三项涉及超过56000头小牛肉胴体的实验，以开发一种使用美能达CR300在宰后45分钟对小牛肉胴体进行仪器颜色分类的方法。该方法应产生与荷兰目前使用的10分制颜色系统类似的结果。在第一个实验中，由三名观察者对小牛肉胴体的颜色进行目视评估，并用两台美能达CR300设备进行仪器测量。将三名观察者和两台美能达设备的结果平均值用于判别分析，以分析产量分类规则，从而将胴体分配到10分制颜色系统的类别中。63.2%的胴体在美能达和观察者的分类上是相同的。在第二个和第三个实验中，使用美能达CR300的分类规则来预测颜色类别。对于新的样本，50%-55%的胴体获得了相同的分类结果。41%-44%的胴体分类结果相差不到一个类别。结果表明，在实际条件下，美能达CR300能够预测10分制颜色类别，可用于屠宰场的在线颜色分类。
