| 糖蜜和农副产品复合添加物对苜蓿青贮品质的影响 |
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| 引用本文： | 李改英,高腾云,傅彤,孙宇.糖蜜和农副产品复合添加物对苜蓿青贮品质的影响[J].湖北农业科学,2007,46(5):813-816. |
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| 作者姓名： | 李改英 高腾云 傅彤 孙宇 |
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| 作者单位： | 河南农业大学牧医工程学院,郑州,450002 |
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| 基金项目： | 荷兰王国国际合作项目
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农业部农业科技跨越计划 |
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| 摘 要： | 研究了不同添加量的糖蜜(0%、5%、10%)和稻草、麸皮、米糠复合添加物对新鲜苜蓿青贮品质的影响.结果表明,添加糖蜜明显改善了青贮饲料的感官品质,提高了粗蛋白质和乳酸含,降低了铵态氮和总氮的比值以及饲料的pH值,添加5%糖蜜组、10%糖蜜组的各项指标与不加糖蜜组(0%)相比,差异极显著(P《0.01);添加糖蜜后挥发性脂肪酸的含量也均下降,但3个试验组之间差异不显著(P》0.05):添加5%、10%糖蜜组之间的平均乳酸含量、平均pH值差异极显著(P《0.01),其他各项指标无显著差异;添加糖蜜后,同麸皮、米糠相比,添加稻草极显著地提高了青贮饲料的乳酸含量、降低了pH值(P《0.01);不加糖蜜时不同的添加物则无显著差异,水分含量影响青贮饲料的品质,农副产品添加量大时,青贮效果较好.
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| 关 键 词： | 新鲜苜蓿 糖蜜 青贮饲料 青贮品质 |
| 文章编号： | 0439-8114（2007）0543813-04 |
| 修稿时间： | 2007-07-05 |
Effects of Molasses and Agro-byproducts Compound Supplement on the Quality of Alfalfa Silage |
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| LI Gai-ying,GAO Teng-yun,FU Tong,SUN Yu.Effects of Molasses and Agro-byproducts Compound Supplement on the Quality of Alfalfa Silage[J].Hubei Agricultural Sciences,2007,46(5):813-816. |
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| Authors: | LI Gai-ying GAO Teng-yun FU Tong SUN Yu |
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| Institution: | College of Animal Husbandry and Veterinary Science, Henan Agricultural University, Zhengzhou 450002,China |
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| Abstract: | The objective of this study was to find out the effects of adding different agro-byproducts,such as molasses,straw,wheat bran and rice bran on the fermentation quality of alfalfa silage.Results from the experiments showed that the silage which was added with molasses,was well-preserved,the sense quality,the content of crude protein and lactic acid were significantly improved,at the same time,the ratio of ammonia-nitrogen to total nitrogen and pH were reduced;the groups which were added with molasses were most significantly different compared with the control group(P<0.01);The content of volatility fatty acid also declined,but there was no difference during the three groups(P>0.05);There was most significant difference in the average lactic acid content and the average pH between the two groups with adding molasses(P<0.01),while the other results had no significant effects;but in the same molasses levels,the results of the lactic acid content and the pH by adding straw were better than the wheat bran and rice bran(P<0.01);there was no difference when not adding molasses,however the moisture content was the key,that is to say,the more the proportion of the agro-byproducts,the better the silage quality. |
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| Keywords: | fresh alfalfa molasses silage silage quality |
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