| 烟酸铬对西门塔尔牛精料瘤胃降解率的影响 |
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| 引用本文： | 王俊芳,刘强,杨效民.烟酸铬对西门塔尔牛精料瘤胃降解率的影响[J].中国奶牛,2011(2):8-10. |
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| 作者姓名： | 王俊芳 刘强 杨效民 |
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| 作者单位： | 1. 山西农业大学,太谷,030801
2. 山西农科院畜牧兽医研究所,太原,030031 |
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| 摘 要： | 试验选用4头平均体重500±20kg,年龄4岁,装有永久性瘤胃瘘管的西门塔尔牛阉牛,采用4×4拉丁方试验设计,以混合精料和风干玉米秸秆为基础日粮,研究1.3倍维持水平下,日粮添加烟酸铬（0mg/d、40mg/d、80mg/d、120mg/d）对精料瘤胃降解率的影响。结果表明：日粮添加烟酸铬组DM有效降解率与对照组差异不显著（P〉0.05）,添加80mg/d烟酸铬组精料OM有效降解率、CP瘤胃有效降解率较对照组显著提高（P〈0.05）。本试验结果表明：日粮添加烟酸铬的适宜添加水平为80mg/d。
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| 关 键 词： | 烟酸铬 西门塔尔牛 精料 瘤胃有效降解率 |
Effects of Supplemental Chromium Nicotinate on Concentrate Feed of Rumen Degradation in Simmental Steer |
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| WANG Jun-fang,LIU Qiang,YANG Xiao-min.Effects of Supplemental Chromium Nicotinate on Concentrate Feed of Rumen Degradation in Simmental Steer[J].China Dairy Cattle,2011(2):8-10. |
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| Authors: | WANG Jun-fang LIU Qiang YANG Xiao-min |
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| Institution: | 1.Shanxi Agricultural University,Taigu 030801;2.Institute of Animal Sciences,Shanxi Academy of Agricultural Sciences,Taiyuan 030031) |
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| Abstract: | Four Simmental steers（average BW 500kg,aged 4） cannulated at the rumen consuming a corn straw diet were used in a 4×4 Latin square design and supplemented with chromium nicotinate（0mg/d,40mg/d,80mg/d and 120mg/d） to evaluate effects of calcium propionate on ruminal degradability of corn stover.the results showed that effective degradability of concentrate organic matter（OM） and crude protein（CP） effective degradability of 80mg/d group was higher than that of control group（P0.05）.The optimum chromium nicotinate supplemented dose was 80mg/d. |
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| Keywords: | Chromium nicotinate Simmental steer Concentrate feed Effective ruminal degradability |
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