【摘要】：試驗(yàn)旨在研究不同水平的糖蜜和青貯添加劑(復(fù)合菌制劑,以植物乳桿菌為主)對(duì)"張雜谷"全株青貯發(fā)酵品質(zhì)和營(yíng)養(yǎng)成分的影響。以灌漿期"張雜谷"全株作為青貯原料,試驗(yàn)設(shè)5個(gè)處理組,即對(duì)照組(直接青貯)、Ⅰ組(1.5‰青貯添加劑)、Ⅱ組(2%糖蜜+1.5‰青貯添加劑)、Ⅲ組(4%糖蜜+1.5‰青貯添加劑)、Ⅳ組(6%糖蜜+1.5‰青貯添加劑),青貯期60d。結(jié)果顯示:(1)試驗(yàn)組在感官評(píng)分上均優(yōu)于對(duì)照組,試驗(yàn)組干物質(zhì)(DM)含量均顯著高于對(duì)照組(P0.05),粗蛋白質(zhì)(CP)含量均高于對(duì)照組;(2)顯著降低了試驗(yàn)組(除Ⅰ組外)青貯飼料中酸性洗滌纖維(ADF)、中性洗滌纖維(NDF)和半纖維素(HC)含量(P0.05),對(duì)灰分含量影響不大(P0.05);(3)與對(duì)照組相比,試驗(yàn)組pH、氨態(tài)氮/總氮(AN/TN)值均顯著降低(P0.05),乳酸顯著提高(P0.05),Ⅰ、Ⅳ組乙酸含量均顯著降低(P0.05),各試驗(yàn)組丙酸含量均顯著降低(P0.05),在試驗(yàn)組和對(duì)照組中均沒(méi)檢出丁酸和異戊酸。綜合分析認(rèn)為,糖蜜和青貯添加劑能改善"張雜谷"全株青貯的發(fā)酵品質(zhì),推薦用量為4%糖蜜+1.5‰青貯添加劑。
[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，

本文編號(hào)：2180140