Quigley J D, Bernard J K
Department of Animal Science, University of Tennessee, Knoxville 37901-1071, USA.
J Dairy Sci. 1996 Oct;79(10):1881-84. doi: 10.3168/jds.S0022-0302(96)76556-6.
Holstein calves (n = 68; 40 heifers) at two locations were used to evaluate effects of the addition of plasma protein to milk replacers on growth, intake, feed efficiency, and fecal scores. Milk replacers were formulated to contain 20% CP and 20% fat. Plasma was added to milk replacers to provide 0 or 25% of CP and replaced whey protein. Calves were fed colostrum for 3 d and then milk replacer (10% of BW/d) for 56 d. Initial mean BW was 38.0 kg. Commercial calf starter was offered for ad libitum consumption throughout the study. Composition of the milk replacer had no effect on weekly BW, BW gain, intake of milk replacer or calf starter, efficiency of BW gain, or fecal scores. Mean BW gain during the 56-d study was 473 g/d, and mean BW at 56 d was 65.8 kg. Calves consumed 534 and 575 g of DM/d of milk replacer and calf starter, respectively, during the 56-d trial. Inclusion of plasma proteins at 25% of CP supported growth equal to that of whey protein.
在两个地点使用了68头荷斯坦犊牛（40头小母牛）来评估在代乳料中添加血浆蛋白对生长、采食量、饲料效率和粪便评分的影响。代乳料配方为含有20%的粗蛋白和20%的脂肪。向代乳料中添加血浆以提供0或25%的粗蛋白，并替代乳清蛋白。犊牛喂初乳3天，然后喂代乳料（体重的10%/天）56天。初始平均体重为38.0千克。在整个研究过程中提供商业犊牛开食料供自由采食。代乳料的组成对每周体重、体重增加、代乳料或犊牛开食料的采食量、体重增加效率或粪便评分没有影响。在为期56天的研究中，平均体重增加为473克/天，56天时的平均体重为65.8千克。在为期56天的试验中，犊牛分别消耗了534克/天和575克/天的干物质代乳料和犊牛开食料。以25%的粗蛋白添加血浆蛋白所支持的生长与乳清蛋白相当。
