Effects of Silage Inoculants on Quality of  Sweet Sorghum Straw and Distiller's Grains

doi:10.6048/j.issn.1001-4330.2017.10.011

Abstract

Abstract: 【Objective】 This project aims to explore the possibility of sweet sorghum distiller's grains as silage material, so as to provide theoretical basis for the utilization of sweet sorghum distiller's grains.【Method】The sweet sorghum stalks and distillers were used as silage materials, and its quality was evaluated by sensory score and physical and chemical indexes. The effects of silage inoculants bacteria on the contents of pH value, crude fiber, total acid, total sugar and dry matter in sweet sorghum straw were studied.【Result】The results showed that the silage quality of sweet sorghum distiller's grains was slightly lower than that of straw, and the grade was grade Ⅱ, which had the potential as silage. The contents of total sugar and reducing sugar in the sweet sorghum straw were significantly higher than those in the control group, the crude fiber was 21.4% lower than that of the control group. The silage inoculants bacteria could increase the total acid content and decrease the silage pH value.【Conclusion】Silage inoculants bacteria can improve the fermentation quality of sweet sorghum straw and distiller's grains, improve the quality of nutrition and prolong the storage time of straw and distiller's grains.

Key words: sweet sorghum; distiller' s grains; silage inoculants bacteria; quality

摘要： 【目的】研究青贮菌剂对甜高粱秸秆与酒糟品质的影响，为甜高粱酒糟饲料化利用提供理论依据。【方法】以甜高粱秸秆和酒糟为青贮原料，通过感官得分、理化指标变化评价甜高粱青贮的品质，研究青贮菌剂对甜高粱秸秆青贮过程中pH值、粗纤维、总酸、总糖、干物质等成分的影响。【结果】甜高粱酒糟的青贮品质略低于秸秆，等级为Ⅱ级尚好，具有作为青贮原料的潜力;添加菌剂组甜高粱秸秆的总糖和还原糖含量分别比对照组显著提高，粗纤维比对照组降低了21.4%，青贮菌剂可以提高总酸含量、降低青贮pH值。【结论】青贮菌剂可以提高甜高粱秸秆和酒糟的发酵品质、改善营养品质，延长秸秆和酒糟的贮存时间。

关键词: 甜高粱, 酒糟, 青贮菌剂, 品质

CLC Number:

S514

YUE Li, YE Kai, Zaituniguli Kuerban, WANG Hui, Shanqimike, TU Zhen-dong. Effects of Silage Inoculants on Quality of Sweet Sorghum Straw and Distiller's Grains[J]. Xinjiang Agricultural Sciences, 2017, 54(10): 1856-1862.

岳丽, 叶凯, 再吐尼古丽·库尔班, 王卉, 山其米克, 涂振东. 青贮菌剂对甜高粱秸秆与酒糟青贮品质的影响[J]. 新疆农业科学, 2017, 54(10): 1856-1862.

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Effects of Silage Inoculants on Quality of Sweet Sorghum Straw and Distiller's Grains

青贮菌剂对甜高粱秸秆与酒糟青贮品质的影响

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