| 烟酸铬对西门塔尔牛瘤胃液pH值和氨态氮浓度的影响 |
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| 引用本文： | 李新,王俊芳,王聪,刘强,石彩叶.烟酸铬对西门塔尔牛瘤胃液pH值和氨态氮浓度的影响[J].饲料工业,2012(19):56-58. |
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| 作者姓名： | 李新 王俊芳 王聪 刘强 石彩叶 |
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| 作者单位： | 山西农业大学动物科技学院,山西太谷,030801 |
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| 基金项目： | 山西省科技厅攻关项目[20100312014]资助 |
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| 摘 要： | 试验选用4头平均体重(500±20)kg,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拉丁方设计,以混合精料和风干玉米秸秆为基础日粮,研究日粮添加烟酸铬(0、40、801、20 mg/d)对瘤胃液pH值及氨态氮浓度的影响。结果表明:日粮添加烟酸铬对瘤胃pH值无显著差异(P>0.05);80 mg/d组瘤胃液氨态氮浓度显著低于对照组,其他各组间无明显差异(P>0.05)。综合以上结果,烟酸铬适宜添加水平为80 mg/d。
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| 关 键 词： | 烟酸铬 西门塔尔牛 瘤胃pH值 氨态氮浓度 |
Effect of chromium nicotinate on ruminal pH value and ammonia nitrogen in Simmental steer |
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| Li Xin
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Wang Junfang
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Wang Cong
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Liu Qiang
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Shi Caiye.Effect of chromium nicotinate on ruminal pH value and ammonia nitrogen in Simmental steer[J].Feed Industry,2012(19):56-58. |
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| Authors: | Li Xin Wang Junfang Wang Cong Liu Qiang Shi Caiye |
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| Institution: | Li Xin,Wang Junfang,Wang Cong,Liu Qiang,Shi Caiye |
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| Abstract: | Four Simmental steers BW(500±20) kg,4 years old] with permanent rumen cannula consuming mixed concentrate and corn silage diet were used in a 4 × 4 Latin square design and supplemented with four concentration(0,40,80,120 mg/d) of chromium nicotinate to evaluate the effects of different chromium nicotinate concentrations on ruminal pH value and ammonia nitrogen concentration.The results showed that the supplementation of different chromium nicotinate concentrations had no effect on ruminal pH value(P>0.05).Ruminal ammonia nitrogen concentration in 80 mg/d group were significantly lower than control group,but there was no significant difference between other groups(P>0.05).These results indicated that the optimum dose of chromium nicolinale supplementation was 80 mg/d. |
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| Keywords: | chromium nicolinale simmental steer ruminal pH value ammonia nitrogen concentration |
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