Geissler C, Hoffmann M
Arch Tierernahr. 1976 Jul;26(7):483-9. doi: 10.1080/17450397609426719.
Low values for urea were found in samples of ruminal fluid of sheep fed concentrate rations if urea determination was carried out by the urease method. The present paper describes a both simple and sensitive colorimetric method of analysis using diacetyldioxime. The method is suitable for determining urea in coloured solutions such as ruminal fluid or silage extracts.
如果采用脲酶法测定尿素，在饲喂精料日粮的绵羊瘤胃液样本中会发现尿素值较低。本文描述了一种使用丁二酮肟的简单且灵敏的比色分析法。该方法适用于测定有色溶液（如瘤胃液或青贮提取物）中的尿素。
