Gaudreau J M, Brisson G J
J Dairy Sci. 1980 Mar;63(3):426-40. doi: 10.3168/jds.S0022-0302(80)82950-X.
Young Holstein male calves fitted with reentrant duodenal fistulae were in two 3 x 3 Latin square experiments. In the first experiment the calves were fed milk replacers containing either 5%, 15%, or 25% lard. Total nitrogen, protein nitrogen, and fat left the abomasum more slowly for the 5% fat milk replacer than for the other two milk replacers. In the second experiment, the calves were fed milk replacers containing either whey proteins, whey, and fish proteins (50:50), or whey and soybean proteins (50:50). Dry matter, total nitrogen, protein nitrogen, and nonprotein nitrogen left the abomasum more slowly for the milk replacer containing whey and soybean proteins than for the other two milk replacers. In both experiments, milk replacers did not differ in rates of passage of fresh matter, reducing substances, ash, gastric secretion of hydrochloric acid, gastric proteolysis, and diarrhea. In Experiment 1, milk replacers did not differ in rates of passage of dry matter and nonprotein nitrogen. In Experiment 2, milk replacers did not differ in rate of passage of fat. Circadian rhythm had no influence.
装有十二指肠折返瘘管的年轻荷斯坦公牛犊参与了两项3×3拉丁方实验。在第一项实验中，给犊牛饲喂含有5%、15%或25%猪油的代乳品。与其他两种代乳品相比，5%脂肪代乳品的总氮、蛋白质氮和脂肪从皱胃排出的速度更慢。在第二项实验中，给犊牛饲喂含有乳清蛋白、乳清和鱼蛋白（50:50）或乳清和大豆蛋白（50:50）的代乳品。与其他两种代乳品相比，含有乳清和大豆蛋白的代乳品的干物质、总氮、蛋白质氮和非蛋白质氮从皱胃排出的速度更慢。在两项实验中，代乳品在新鲜物质、还原物质、灰分、胃酸分泌、胃蛋白酶解和腹泻的通过速率方面没有差异。在实验1中，代乳品在干物质和非蛋白质氮的通过速率方面没有差异。在实验2中，代乳品在脂肪的通过速率方面没有差异。昼夜节律没有影响。
