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):845-9.
The concentration of 19 mineral, electrolyte, and biochemical components in blood serum of 114 calves under feedlot conditions were measured or calculated over a 58-day period (2 days before and 56 days during a feed trail). The purpose was to evaluate the variability in the concentration of these components over time. The blood was collected on 7 sampling dates and analyzed on the day following sampling. Generally, the serum concentrations of the components that were measured varied considerably over the first 3 weeks of the feeding period and then had a tendency to level off during the 2nd part of that period.
在育肥场条件下，对114头犊牛血清中19种矿物质、电解质和生化成分的浓度进行了为期58天的测量或计算（饲养试验前2天和试验期间56天）。目的是评估这些成分浓度随时间的变化情况。在7个采样日期采集血液，并在采样后的第二天进行分析。一般来说，所测成分的血清浓度在饲养期的前三周变化很大，然后在该时期的后半段有趋于稳定的趋势。
