摘要:
本文报道了国内首先应用的新蛋白体系(即降解蛋白体系)经过两年多的研究和中间试验。按奶牛泌乳生理3个阶段即泌乳盛期,泌乳中期,泌乳后期,筛选出最佳浓缩料和添加剂的A组配方。研究表明:应用A组浓缩料和添加剂配方喂养奶牛,在一个泌乳期(305d)奶产量平均达到5661kg,比对照组(常规饲养)平均4432kg增加1229kg,提高27.7%;乳脂平均3.56%,比对照组3.19%提高0.37个百分点,乳蛋白平均3.22%,比对照组平均3.05%增加0.17个百分点。
Abstract:
The paper reported a new protein system of feed for dairy cattle. According to the physiological lactation periods,i. e. the lactation, the middle lactation and the later lactation period, a set of concentrated compound feed and additive (recipe A,B,C)was selected to feed the cattle, compared with that fed on the normal food. The results showed the mean milk pield, the milk fat and the mean lactoprotein content of the cattle fed in the recipe A were 5661kg/305days,3. 56% and 3. 22% respectively , 27.7%,0.37% and 0.17% more than that fed on the normal food respectively.
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