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不同添加剂(物)对玉米秸秆青贮有机酸含量的影响 被引量:28

Influence of different additives on the organic acid of corn silage
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摘要 以玉米为原料,添加碳酸钙、尿素、玉米籽实、麸皮、青贮发酵益生菌(Max200)、矿物盐载体结合益生菌合剂以及植物细胞壁降解活性制剂(MixⅡ),通过测定青贮发酵期有机酸含量,评价不同添加剂(物)对青贮效果的影响.结果表明:全贮(全株玉米)中,在发酵期第1、7、14、21d添加MixⅡ组和Max200组乳酸含量均极显著高于其他处理组及对照组(P<0.01),添加MixⅡ组乳酸含量显著高于Max200组(P<0.01);黄贮(摘除果穗)中,在发酵期第1、7、14、21d添加MixⅡ组和Max200组乳酸含量极显著高于其他处理组及对照组(P<0.01),第7、21d添加MixⅡ组乳酸含量显著高于添加Max200组(P<0.01).青贮第21d,添加麸皮组、尿素组、碳酸钙组、Max200组、MixⅡ组和对照组乳酸与乙酸的比值在全贮中分别达到1.93、2.36、1.60、3.74、3.64、2.13,黄贮中分别为1.53、2.25、1.98、2.54、3.11、1.33,添加MixⅡ组和Max200组显著高于其他处理组(P<0.01).发酵期第14d和21d,仅在全贮和黄贮个别样中检测到微量丁酸. The content of organic acid was studied with the addition of CaCO3,urea,corn seeds,bran,Max200(silage fermentation probiotics),MixⅡ(mineral salt carrier+ probiotics mixture+ GXC) of corn silage(with ear) and corn silage(without ear).The results showed that Max200 group and MixⅡgroup could significantly increase the lactic acid content at the silage time of 1 d,7 d,14 d and 21 d(P0.01).At 21 d,the ratio of lactic acid acetic acid of corn silage(without ear) in the treatments of bran,urea,CaCO3,Max200 and MixⅡwere 1.53,2.25,1.98,2.54,3.11,1.33 and of corn silage(with ear) were 1.93,2.36,1.60,3.74,3.64,2.13,MixⅡgroup and Max200 group were significantly higher than the other treatments.Butyric acids were detected only in a few samples at the silage time of 14 d and 21 d.
出处 《甘肃农业大学学报》 CAS CSCD 北大核心 2012年第5期34-39,共6页 Journal of Gansu Agricultural University
基金 绒毛用羊产业体系专项 绒毛用羊建设设计与配套关键技术研究(CARS-40-09) 玉米秸秆饲料化优势发酵乳酸菌选育及生物添加剂研究项目(GNSW-2010-05) 甘肃省玉米秸秆饲料化利用专项(2130106-科技推广)
关键词 玉米 青贮 微生态系统 有机酸 corn silage micro-ecosystem organic acid
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参考文献21

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