Ruppanner R, Norman B B, Adams C J, Addis D G, Lofgreen G P, Clark J G, Dunbar J R
Am J Vet Res. 1978 May;39(5):851-4.
The cellular components of the blood of 114 calves were measured under feedlot conditions. The results suggest that certain cellular components of the blood of a group of crossbred feedlot-type calves which are homogeneous only with regard to weight are reasonably uniform. More specifically, all red blood cell components have coefficients of variation of less than 10%. The white blood cell counts underwent drastic changes over the first 2 sampling dates, ie, before and after transport and processing of the calves. Later, in the feeding period, the cell counts readjusted to more stable levels. The results were compared with such values obtained from dairy cattle. The total erythrocyte count, total leukocyte count, and red blood cell components were found to be slightly higher in these feedlot calves than in dairy cattle. The difference might partly be due to age. The mean values reported can be used as a base for comparison with values obtained from other such studies or from studies of disease processes in cattle under feedlot conditions (or both).
在饲养场条件下对114头小牛的血液细胞成分进行了测量。结果表明，一组仅在体重方面同质的杂交饲养场型小牛血液中的某些细胞成分相当均匀。更具体地说，所有红细胞成分的变异系数均小于10%。白细胞计数在最初的两个采样日期，即小牛运输和处理前后发生了剧烈变化。后来，在饲养期，细胞计数重新调整到更稳定的水平。将结果与从奶牛获得的此类值进行了比较。发现这些饲养场小牛的总红细胞计数、总白细胞计数和红细胞成分略高于奶牛。这种差异可能部分归因于年龄。报告的平均值可作为与其他此类研究或饲养场条件下牛的疾病过程研究（或两者）获得的值进行比较的基础。
