| 高精料日粮下添加阿卡波糖对奶牛瘤胃及后肠发酵的影响研究 |
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| 引用本文： | 殷雨洋,刘玉洁,张瑞阳,朱伟云,毛胜勇. 高精料日粮下添加阿卡波糖对奶牛瘤胃及后肠发酵的影响研究[J]. 草业学报, 2016, 25(6): 198-203. DOI: 10.11686/cyxb2015431 |
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| 作者姓名： | 殷雨洋 刘玉洁 张瑞阳 朱伟云 毛胜勇 |
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| 作者单位： | 1.南京农业大学动物科技学院,江苏 南京 210095; 2.湖州市农业科学研究院湖羊研究所,浙江 湖州 313000 |
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| 基金项目： | 国家“973”奶业项目(2011CB100801)资助。 |
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| 摘 要： | 本试验旨在探讨高精料日粮下添加阿卡波糖对奶牛瘤胃和后肠发酵的影响。试验选用3头干奶期荷斯坦奶牛,采用3×3拉丁方试验设计,阿卡波糖添加剂量为0,0.5和1.0 g/d,试验分3期进行,每期21 d。结果表明,与对照组比较,添加阿卡波糖显著降低了奶牛瘤胃液中丙酸浓度(P<0.05),提高了乙丙比(P<0.05),但对瘤胃pH值、乳酸、乙酸、异丁酸、丁酸、异戊酸、戊酸、总挥发性脂肪酸和氨氮浓度无显著影响(P>0.05);与对照组比较,添加阿卡波糖显著降低了粪便pH值和氨氮浓度(P<0.05),提高了乳酸、丁酸和异戊酸浓度(P<0.05),但对乙酸、丙酸、异丁酸、戊酸、总挥发性脂肪酸和乙丙比无显著影响(P>0.05)。结果说明,高精料日粮下长期添加阿卡波糖虽可影响瘤胃液中个别挥发性脂肪酸的浓度,但对瘤胃整体发酵和瘤胃pH值无显著影响,此外,添加阿卡波糖可增加后肠发酵,并可能对后肠健康带来潜在危害。
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| 关 键 词： | 阿卡波糖 奶牛 瘤胃 后肠 挥发性脂肪酸 |
| 收稿时间： | 2015-09-09 |
| 修稿时间： | 2015-11-09 |
The effect of acarbose addition on rumen and hindgut fermentation in dairy cows fed high-concentrate diets |
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| YIN Yu-Yang,LIU Yu-Jie,ZHANG Rui-Yang,ZHU Wei-Yun,MAO Sheng-Yong. The effect of acarbose addition on rumen and hindgut fermentation in dairy cows fed high-concentrate diets[J]. Acta Prataculturae Sinica, 2016, 25(6): 198-203. DOI: 10.11686/cyxb2015431 |
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| Authors: | YIN Yu-Yang LIU Yu-Jie ZHANG Rui-Yang ZHU Wei-Yun MAO Sheng-Yong |
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| Affiliation: | 1.The College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; 2.Huzhou Academy of Agricultural Sciences, Huzhou 313000, China |
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| Abstract: | In this study,three cannulated Holstein cows (590±48 kg liveweight)were used to investigate the effect of acarbose (glucosidase inhibitor)addition (0,0.5 and 1.0 g/d)on ruminal and hindgut fermentation characteristics in a 3×3 Latin square design.The results showed that acarbose addition decreased the propio-nate concentration in rumen fluid (P <0.05),increased the ratio of acetate to propionate (P <0.05)but did not affect the concentrations of lactate,acetate,isobutyrate,butyrate,isovalerate,valerate,total volatile fatty acid,ammonia-nitrogen,and pH value compared with the control (P >0.05).Acarbose addition decreased the pH value and ammonia-nitrogen levels (P < 0.05 )and increased the concentrations of lactate,butyrate, isovalerate (P <0.05)in feces,but no differences were observed in the concentration of acetate,propionate, isobutyrate,valerate,total volatile fatty acid and the ratio of acetate to propionate among the three groups.In general,our data revealed that acarbose addition may not be useful for preventing the occurrence of ruminal aci-dosis in the long term.Additionally,acarbose addition may increase hindgut fermentation and produce detri-mental effects on the hindgut health of dairy cattle. |
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| Keywords: | acarbose diary cows rumen hindgut volatile fatty acid |
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