Grassmann E, von Krziwanek S, Kirchgessner M
Arch Tierernahr. 1978 Jul;28(7):451-8. doi: 10.1080/17450397809436250.
Studies on the effect of increasing protein levels in the diet (0 to 50% casein) on hematological criteria (v. Krziwanek et al., 1978) were supplemented by experiments regarding the reaction of catalase, ceruloplasmin and alkaline phosphatase under such conditions. A relationship was found between the activity of all 3 enzymes and protein supply. The catalase activity of the blood revealed a linear relationship with the protein level of the diet. The activity of the alkaline phosphatase was found to go up as the protein level of the diet increased reaching its maximum with weight development. The ceruloplasmin activity revealed an opposite behaviour. The results show that the application of these criteria for measuring the supply with and conversion of trace elements do not allow reliable statements but under constant experimental conditions. The catalase activity in the blood may give certain clues for assessing the quality and quantity of protein in the feed.
关于饮食中蛋白质水平增加（0至50%酪蛋白）对血液学指标影响的研究（v. Krziwanek等人，1978年），通过在这些条件下关于过氧化氢酶、铜蓝蛋白和碱性磷酸酶反应的实验得到了补充。发现所有这三种酶的活性与蛋白质供应之间存在一种关系。血液中的过氧化氢酶活性与饮食中的蛋白质水平呈线性关系。发现碱性磷酸酶的活性随着饮食中蛋白质水平的增加而上升，并随着体重增加达到最大值。铜蓝蛋白活性则表现出相反的行为。结果表明，应用这些标准来测量微量元素的供应和转化，只有在恒定的实验条件下才能得出可靠的结论。血液中的过氧化氢酶活性可能为评估饲料中蛋白质的质量和数量提供某些线索。
