Fayet J C, Overwater J
Ann Rech Vet. 1978;9(1):55-61.
Blood samples were taken from 55 diarrhoeic calves (neo-natal diarrhoea) at the time of the first therapeutic intervention. Eleven blood parameters were measured in these samples. The whole group of measurements were analysed by their principal components (tables 3 and 4). The results are expressed in visual form by Figures 1 and 2. The first principal axis corresponds to the acid-base balance while the second axis can be considered as corresponding to the catabolism. The discriminant analysis (table 5) shows that the parameter having the best prognosis value is the blood urea concentration. By adding two other easily measured parameters (the haematocrit and the blood chloride concentration) the probability of classifying correctly the calves into one or other of the groups dead or surviving is approximately 80%.
在首次治疗干预时，从55头腹泻犊牛（新生腹泻）采集血样。对这些血样测量了11项血液参数。通过主成分分析了整个测量组（表3和表4）。结果以图1和图2的可视化形式呈现。第一主轴对应酸碱平衡，而第二轴可视为对应分解代谢。判别分析（表5）表明，预后价值最佳的参数是血尿素浓度。通过添加另外两个易于测量的参数（血细胞比容和血氯浓度），将犊牛正确分类为死亡或存活组的概率约为80%。
