Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls
Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls
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在生长奶牛的混合日粮中添加大麦纤维和大麦蛋白
DOI：
10.1080/09064700802029842
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
E. Joki
中科院分区：
文献类型：
--
作者：
A. Huuskonen;H. Khalili;E. Joki
摘要 采用 32 头奶牛的 2×2 析因设计研究了用纤维浓缩物部分替代淀粉浓缩物和用大麦蛋白替代菜籽粕作为蛋白质补充剂对随意采食全混合日粮的公牛生产性能的影响。这两种能量补充剂是压扁大麦 (B) 以及压扁大麦和大麦纤维 (BF) 的混合物（基于干物质 (DM) 1:1）。这些饲料用菜籽粕或大麦蛋白喂养，使日粮粗蛋白含量为 162 g kg−1 DM。用大麦纤维代替一半大麦粒增加了（P<0.01）平均DM摄入量（9.3 kg d−1 vs 9.9 kg d−1），但对平均活重增加（1.27 kg d−1）没有影响。菜籽粕和大麦蛋白作为蛋白质补充剂对动物性能的影响似乎只有很小的差异。
Abstract A 2×2 factorial design with 32 dairy bulls was used to study the effects of partial replacement of a starchy concentrate with a fibrous concentrate and replacement of rapeseed meal with barley protein as protein supplement on performance of bulls with ad libitum access to a total mixed ration feeding. The two energy supplements were flattened barley (B) and a mixture (1:1 on dry matter (DM) basis) of flattened barley and barley fibre (BF). These were fed with either rapeseed meal or barley protein so that the crude protein content of rations was 162 g kg−1 DM. Replacing half of the barley grain with barley fibre increased (P<0.01) the average DM intake (9.3 kg d−1 versus 9.9 kg d−1), but had no effect on the average live weight gain (1.27 kg d−1). There seemed to be only a minor difference between rapeseed meal and barley protein as protein supplements on animal performance.