添加糖蜜和青贮添加剂对“张杂谷”全株青贮发酵品质的影响
发布时间：2018-08-12 19:37
【摘要】：试验旨在研究不同水平的糖蜜和青贮添加剂(复合菌制剂,以植物乳杆菌为主)对"张杂谷"全株青贮发酵品质和营养成分的影响。以灌浆期"张杂谷"全株作为青贮原料,试验设5个处理组,即对照组(直接青贮)、Ⅰ组(1.5‰青贮添加剂)、Ⅱ组(2%糖蜜+1.5‰青贮添加剂)、Ⅲ组(4%糖蜜+1.5‰青贮添加剂)、Ⅳ组(6%糖蜜+1.5‰青贮添加剂),青贮期60d。结果显示:(1)试验组在感官评分上均优于对照组,试验组干物质(DM)含量均显著高于对照组(P0.05),粗蛋白质(CP)含量均高于对照组;(2)显著降低了试验组(除Ⅰ组外)青贮饲料中酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)和半纤维素(HC)含量(P0.05),对灰分含量影响不大(P0.05);(3)与对照组相比,试验组pH、氨态氮/总氮(AN/TN)值均显著降低(P0.05),乳酸显著提高(P0.05),Ⅰ、Ⅳ组乙酸含量均显著降低(P0.05),各试验组丙酸含量均显著降低(P0.05),在试验组和对照组中均没检出丁酸和异戊酸。综合分析认为,糖蜜和青贮添加剂能改善"张杂谷"全株青贮的发酵品质,推荐用量为4%糖蜜+1.5‰青贮添加剂。
[Abstract]:The purpose of this study was to study the effects of different levels of molasses and silage additives (compound bacteria, mainly Lactobacillus plantarum) on the fermentation quality and nutritional composition of the whole silage of "Zhangzagu". The whole plant of "Zhangzagu" at filling stage was used as silage material, and five treatment groups were set up in the experiment. Control group (direct silage), 鈪，
本文编号：2180140
[Abstract]:The purpose of this study was to study the effects of different levels of molasses and silage additives (compound bacteria, mainly Lactobacillus plantarum) on the fermentation quality and nutritional composition of the whole silage of "Zhangzagu". The whole plant of "Zhangzagu" at filling stage was used as silage material, and five treatment groups were set up in the experiment. Control group (direct silage), 鈪，
本文编号：2180140
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