Hidiroglou M, Thompson B K
Ann Rech Vet. 1980;11(4):381-9.
A study using 72 beef cows and their calves was carried out over a one year period in Northern Ontario to examine the serum alkaline phosphatase (SAP) levels of the animals during the onset of hypomagnesaemia. No evidence was found of a fall in SAP corresponding to the dramatic decreases in serum magnesium. At the same time, other factors relating to SAP were considered. The relative SAP levels of the cows were found to be remarkably consistent with respect to time, but those of the calves less so. The SAP levels of the calves were considerably higher throughout than those of the cows, though the difference became smaller later in the season. Although the SAP levels of the calves did appear to be related to their growth patterns, there was a tendency for cows with higher SAP to have faster growing calves. Furthermore, changes in SAP prior to calving were negatively correlated with calf weight gain. There were fairly high correlations (about 0.4) between SAP and serum phosphorus for the calves but not for the cows.
在安大略省北部进行了一项为期一年的研究，该研究使用了72头肉牛及其犊牛，以检查动物在低镁血症发作期间的血清碱性磷酸酶（SAP）水平。未发现有证据表明SAP会随着血清镁的急剧下降而降低。与此同时，还考虑了与SAP相关的其他因素。发现母牛的相对SAP水平在时间上非常一致，但犊牛的相对SAP水平则不太一致。犊牛的SAP水平在整个过程中都明显高于母牛，不过在季节后期差异变小。虽然犊牛的SAP水平似乎与它们的生长模式有关，但SAP较高的母牛往往有生长较快的犊牛。此外，产犊前SAP的变化与犊牛体重增加呈负相关。犊牛的SAP与血清磷之间存在相当高的相关性（约0.4），但母牛则不存在这种相关性。
