| 苜蓿干草替代部分精料对奶牛产奶性能的影响 |
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| 引用本文： | 岳春旺,孙茂红,孙全文,王宁. 苜蓿干草替代部分精料对奶牛产奶性能的影响[J]. 湖北农业科学, 2009, 48(5) |
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| 作者姓名： | 岳春旺 孙茂红 孙全文 王宁 |
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| 作者单位： | 河北北方学院动物科技学院,河北,张家口,075000;河北北方学院国有资产管理处,河北,张家口,075000 |
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| 基金项目： | 张家口市科学研究项目 |
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| 摘 要： | 选择年龄、胎次、分娩季节接近的奶牛20头,随机分为4组,每组5头,分别于每天用0、3、6、9 kg的苜蓿干草替代奶牛日粮中的部分精饲料.结果表明,添加苜蓿干草对奶牛的产奶量和乳蛋白没有显著地影响(P>0.05),但添加组(每天3、6、9 kg)与对照组(不添加苜蓿干草)相比,乳脂率有显著提高(P<0.05).从日粮成本看,用苜蓿干草替代奶牛日粮中部分精料可以降低饲料成本,并且以在泌乳奶牛日粮中每天添加6 kg的苜蓿干草替代部分精饲料的处理最为理想.
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| 关 键 词： | 奶牛 苜蓿干草 产奶量 乳脂率 乳蛋白 |
Effects of Appended Alfalfa Hay on Performance of Lactating Dairy Cows |
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| YUE Chun-wang,SUN Mao-hong,SUN Quan-wen,WANG Ning. Effects of Appended Alfalfa Hay on Performance of Lactating Dairy Cows[J]. Hubei Agricultural Sciences, 2009, 48(5) |
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| Authors: | YUE Chun-wang SUN Mao-hong SUN Quan-wen WANG Ning |
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| Affiliation: | Hebei North University a.College of Animal Science;b.Department of State Assets management;Zhangjiakou 075000;Hebei;China |
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| Abstract: | 20 cows,with the same age,birth rank and childbirth season,were selected and divided into 4 groups randomly,each group of 5 heads,fed 0 kg.d-1,3 kg.d-1,6 kg.d-1 and the 9 kg.d-1 alfalfa hay respectively to substitute partial concentrated feed of the dairy cow ration.The result indicated that the appended alfalfa hay had no remarkable influence on the cow milk yield and the milk protein(P>0.05),but the milk fat of the appended groups(3 kg.d-1,6 kg.d-1,9 kg.d-1) was enhanced obviously compared with the contro... |
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| Keywords: | dairy cow alfalfa hay milk yield milk fat milk protein |
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