Petit H V, Ivan M, Brisson G J
Département de Zootechnie, Université Laval, Québec, Canada.
J Dairy Sci. 1987 Dec;70(12):2565-9. doi: 10.3168/jds.S0022-0302(87)80325-9.
An oxalate-NaOH buffer, which prevents coagulation in the abomasum of young calves, was added to a nonclotting milk replacer based on high heat skim milk powder, to investigate effects of this buffer on digestibility and metabolism of dietary components. Twelve Holstein male calves were allotted at random in two groups of six animals each and fed the experimental milk replacers from 3 to 17 d of age. Digestibility of dry matter, protein, and fat was similar for both control and buffered milk replacers. Concentrations of plasma glucose, triglycerides, alpha-amino nitrogen, and urea were the same in animals receiving buffer treated milk replacer and control diets. The data suggests that this oxalate-NaOH buffer would be suitable to prevent milk clotting in studies dealing with the importance of coagulation in digestion and metabolism in preruminant calves.
一种能防止幼龄犊牛皱胃内乳汁凝固的草酸盐 - 氢氧化钠缓冲液被添加到一种以高热脱脂奶粉为基础的不凝乳代乳品中，以研究该缓冲液对日粮成分消化率和代谢的影响。12头荷斯坦雄性犊牛被随机分为两组，每组6头，从3日龄至17日龄饲喂实验性乳代乳品。对照乳代乳品和添加缓冲液的乳代乳品的干物质、蛋白质和脂肪消化率相似。接受添加缓冲液处理的乳代乳品和对照日粮的动物血浆葡萄糖、甘油三酯、α - 氨基氮和尿素浓度相同。数据表明，这种草酸盐 - 氢氧化钠缓冲液适用于在反刍前犊牛消化和代谢中研究凝乳重要性的实验中防止乳汁凝固。
