Abstract This paper presents the results of the mixing of a multicomponent feed for cattle. Three types of mixtures with different proportions of individual components and granulometric composition were selected. After the mixing process, the fraction of the key component (tracer) was determined. Tracer consisted of crushed grains of yellow maize, which was wet treated with a 0.01% solution of Rhodamine B. A tracer with two different average particle sizes d 1 = 2.0 mm and d 2 = 1.25 mm was introduced into the mixture. Then, the sample was illuminated with UV light, and the content of the tracer in the sample was evaluated using the computer image analysis. In addition, the tracer was separated to determine its fraction using a laboratory scale. From the obtained results, the high reliability of the fluorescence optical method for the evaluation of the homogeneity of granular multicomponent mixtures was proved. It was also observed that slightly better results were obtained for a tracer with a larger average particle size (d = 2.0 mm), although the comparative analysis did not indicate a significant statistical difference in the results in each series of tests.

中文翻译：

---

荧光在评估饲料混合中关键成分的份额时

摘要 本文介绍了混合牛用多组分饲料的结果。选择了具有不同比例的各个组分和粒度组成的三种类型的混合物。在混合过程之后，确定关键组分（示踪剂）的分数。示踪剂由粉碎的黄玉米粒组成，用 0.01% 的罗丹明 B 溶液对其进行湿处理。将具有两种不同平均粒径 d 1 = 2.0 mm 和 d 2 = 1.25 mm 的示踪剂引入混合物中。然后，用紫外光照射样品，并使用计算机图像分析评估样品中示踪剂的含量。此外，使用实验室规模分离示踪剂以确定其分数。从得到的结果来看，证明了荧光光学方法用于评估颗粒状多组分混合物的均匀性的高可靠性。还观察到，对于具有较大平均粒径 (d = 2.0 mm) 的示踪剂，获得的结果稍好一些，尽管比较分析并未表明每个系列测试的结果存在显着的统计差异。