动物营养学报 >

2018 , Vol. 30 >Issue 8: 3267 - 3275

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.08.046

饲料资源开发 Feed Resources Development

不同酸化剂与玉米粉混合对香蕉茎叶和假茎青贮品质的影响

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  • 扬州大学动物科学与技术学院, 扬州 225009
程宣(1993-),女,新疆石河子人,硕士研究生,从事反刍动物营养研究。E-mail:1752245281@qq.com

收稿日期: 2018-03-18

  网络出版日期: 2018-08-18

基金资助

国家公益性行业（农业）科研专项（201303144）；扬州大学高编人才支持计划（2016）；江苏省农业三新工程项目"江苏现代农业（肉羊）产业技术体系营养调控创新团队"（SXGC[2017]300）；江苏省农业三新工程（SXGC[2017]151）

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Effects of Mixing Different Organic Acids and Maize Powder on Silage Quality of Banana Stems and Leaves and Banana Pseudostems

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  • College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2018-03-18

  Online published: 2018-08-18

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摘要

为探讨不同酸化剂与玉米粉混合对高水分香蕉茎叶和假茎青贮品质的影响，本试验分别以鲜香蕉茎叶和假茎（静置48 h，对应含水率分别为91.1%和94.8%）为青贮原料，添加不同酸化剂与玉米粉进行青贮。在香蕉茎叶青贮时分别添加10%玉米粉（YY组）、10%玉米粉+0.6%甲酸（YJ组）、10%玉米粉+0.4%乙酸（YS组）、10%玉米粉+0.5%丙酸钙（YB组），同时设不添加酸化剂与玉米粉的对照（CK1组）；在香蕉假茎青贮时分别添加10%玉米粉（JY组）、10%玉米粉+0.6%甲酸（JJ组）、10%玉米粉+0.4%乙酸（JS组）、10%玉米粉+0.5%丙酸钙（JB组），同时设不添加酸化剂与玉米粉的对照（CK2组）。青贮45 d后开封，对各组青贮饲料进行感官评定和实验室评定。结果显示：不同添加剂处理后得到的香蕉茎叶和假茎青贮饲料的感官评定均优于相应的对照组（CK1和CK2组）；与相应的对照组相比，添加玉米粉的YY和JY组pH均显著降低（P<0.05），乳酸含量显著提高（P<0.05），氨态氮含量显著降低（P<0.05）。添加不同酸化剂的YJ、YS和YB组与YY组的干物质、粗蛋白质、中性洗涤纤维和酸性洗涤纤维含量无显著差异（P>0.05），而JY组的干物质、中性洗涤纤维和总酚含量均显著低于JJ组（P<0.05），且香蕉茎叶组和香蕉假茎组中均以添加甲酸与玉米粉的组（YJ组和JJ组）乳酸含量最低，可溶性碳水化合物含量最高。由此可见，在青贮时加入酸化剂与玉米粉可提高高水分香蕉茎叶和假茎的青贮品质，其中以添加甲酸与玉米粉时的青贮品质最佳。

关键词： 酸化剂; 玉米粉; 香蕉茎叶; 香蕉假茎; 青贮品质

本文引用格式

程宣, 王洪荣, 金亚倩, 彭阿龙, 任胜男, 夏光亮 . 不同酸化剂与玉米粉混合对香蕉茎叶和假茎青贮品质的影响[J]. 动物营养学报, 2018 , 30(8) : 3267 -3275 . DOI: 10.3969/j.issn.1006-267x.2018.08.046

Abstract

In order to investigate the effects of mixing different organic acids and maize powder on the silage quality of high moisture banana stems and leaves and banana pseudostems, two types of silage materials-fresh banana stems and leaves and banana pseudostems (leaving for 48 hours, and the corresponding moisture content was 91.1% and 94.8%) were ensiled with different organic acids and maize powder. The banana stems and leaves were ensiled with 10% maize powder (YY group), 10% maize powder+0.6% formic acid (YJ group), 10% maize powder+0.4% acetic acid (YS group), 10% maize powder+0.5% calcium propionate (YB group), respectively, there was a control without organic acids and maize powder (CK1 group). The banana pseudostems were ensiled with 10% maize powder (JY group), 10% maize powder+0.6% formic acid (JJ group), 10% maize powder+0.4% acetic acid (JS group) and 10% maize powder+0.5% calcium propionate (JB group), respectively, and there was a control without organic acids and maize powder (CK2 group). Silages were opened after ensiling 45 days, and sensory evaluation and laboratory evaluation were performed for silages of each group. The results showed that the sensory evaluation of silages for banana stems and leaves and banana pseudostems after treatment with different additives was better than that of the corresponding control group (CK1 and CK2 groups). Compared with the corresponding control group, the addition of maize powder (YY and JY groups) significantly reduced the pH (P<0.05), significantly increased the lactic acid content (P<0.05), and significantly reduced the ammonia nitrogen content (P<0.05). The contents of dry matter, crude protein, neutral detergent fiber and acid detergent fiber in YJ, YS, YB and YY groups with different organic acids were not significantly different (P>0.05), while the contents of dry matter, neutral detergent fiber and total phenol in JY group were significantly lower than those in JJ group (P<0.05), and the group added with formic acid and maize powder was used in banana stems and leaves group (YJ group) and banana pseudostems group (JJ group) had the lowest lactic acid content and the highest soluble carbohydrate content. It can be seen that the addition of different organic acids and maize powder in silage can improve the silage quality of high moisture banana stems and leaves and banana pseudostems, with the best silage quality when adding formic acid and maize powder.

Key words： organic acid; maize powder; banana stems and leaves; banana pseudostems; silage quality

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