| 发酵抑制剂对紫花苜蓿青贮发酵品质的影响 |
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| 引用本文： | 陈卢亮,李静.发酵抑制剂对紫花苜蓿青贮发酵品质的影响[J].中国奶牛,2011(11):54-57. |
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| 作者姓名： | 陈卢亮 李静 |
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| 作者单位： | 1. 福建漳州市亚行贷款项目办公室,漳州,363000
2. 中国农业大学草业科学系,北京,100193 |
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| 摘 要： | 本试验以紫花苜蓿为研究材料，探讨添加发酵抑制剂对其乳酸菌数量和青贮品质的影响，试验设置了对照、甲酸（0．5％、0．8％）、丙酸（（）．5％、0．8％）、Silo guard（0．05％、0．1％）7个处理，调制青贮饲料，30d后开封并取样分析。结果表明，添加剂甲酸和丙酸（0．5％、0．8％）在一定程度上抑制了紫花苜蓿青贮饲料乳酸菌（LAB）的生长繁殖，乳酸含量较低，但pH值、氨态氮占总氮比例（NH3-N／TN）、丁酸含量均显著低于对照组（P〈0．05），明显改善了紫花苜蓿青贮饲料的发酵品质。发酵抑制剂Silo guard（0．1％）也使pH值和丁酸含量显著下降（P〈0．05）而对乳酸含量没有明显影响。
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| 关 键 词： | 紫花苜蓿 青贮 添加剂 发酵品质 化学成分 乳酸菌 |
The Effect of Different Additives on the Fermentation Quality of Alfalfa Silage |
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| Chen Lu-Liang,LI Jing.The Effect of Different Additives on the Fermentation Quality of Alfalfa Silage[J].China Dairy Cattle,2011(11):54-57. |
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| Authors: | Chen Lu-Liang LI Jing |
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| Institution: | 1. ADB Loan Project Office of ZhangZhou City,Fujian ZhangZhou 363000;2. Department of Grassland Science, China Agricultural University, Beijing 100193) |
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| Abstract: | A laboratory-scale experiment was conducted using Alfalfa to evaluate the ensiling effects and LAB counts of different additives which including Fabric acid （0.5%,0.8%）, Propionic acid（O.5%,0.8%）aud Silo guard（O.O5%,0.1%）.At the end of the ensiling period （30days）,the silages were sampled for fermentation quality, chemical composition and LAB counts analysis. The results showed that the treatment of 0.Ol%Lalsil Dry could increase the in vitro digestibility of ADF（P〈O.05）. The LAB of Alfalfa silage would be inhibited in some extent and the concentration of Lactic acid decreased when Fabric acid and Propionie acid were added at the rate of 0.5% and 0.8% respectively,In addition, the pH value,Ammonia Nitrogen/Total Nitrogen （NH3-N/TN） and Butyric acid content decreased significantly （P〈0.05）. Lower pH value and Butyric acid content were also observed by the treatment of 0. l%Silo guard（P〈O.05）. |
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| Keywords: | Alfalfa Silage Additives Fermentation quality Chemical composition LAB |
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