饲料研究2025，Vol.48Issue(1)：175-179,5.DOI:10.13557/j.cnki.issn1002-2813.2025.01.030
不同青贮添加剂对构树青贮营养成分及发酵品质的影响
Effects of different silage additives on nutrient composition and fermentation quality of Broussonetia papyrifera silage
摘要
Abstract
The experiment aimed to investigate the effects of different silage additives on the nutritional components and fermentation quality of Broussonetia papyrifera silage.Direct silage with 60％water content was used as control group.Each additive group was supplemented with 3.5％molasses(group 1),1 g/kg bacterial enzyme preparation(group 2),5 mL/kg formic acid(group 3),molasses+bacterial enzyme preparation(group 4),molasses+formic acid(group 5),bacterial enzyme preparation+formic acid(group 6),molasses+bacterial enzyme preparation+formic acid(group 7),respectively.Each group contained three replicates.The silage was stored for 60 days.The results showed that the sensory score of the control group was low(average),the sensory score of the group 3 was 14(good),and that of the other groups was equal to or higher than 16(excellent),and the sensory score of the group 7 was the highest(20).Compared to the control group,the dry matter content of the group 2,groups 4 to 7 was significantly increased(P＜0.05),except for group 3,the crude protein and soluble crude protein content in the other groups were significantly increased(P＜0.05),and the acid detergent lignin content was significantly decreased(P＜0.05).The groups 4 to 7 showed a significant increase in soluble carbohydrate content(P＜0.05).All groups significantly reduced the concentrations of neutral detergent fiber and acid detergent fiber(P＜0.05),and significantly increased the non-protein nitrogen content(P＜0.05).Compared to the control group,the pH value and the ratio of ammonium nitrogen to total nitrogen in the all groups were significantly decreased(P＜0.05),and the lactic acid content was significantly increased(P＜0.05),aerobic stability improved(P＜0.05),with groups 4 to 7 showing significantly higher aerobic stability than groups 1 to 3(P＜0.05),and group 7 had the highest aerobic stability at 65.44 hours.The study indicates that the addition of silage additives during the ensiling process of B.papyrifera can improve sensory scores,nutritional components,fermentation quality,and aerobic stability,with the combination of molasses+microbial enzyme preparation+formic acid showing the better results.关键词
糖蜜/乳酸菌/纤维素酶/构树/营养成分/酸性木质素/发酵品质Key words
molasses/lactic acid bacteria/cellulase/Broussonetia papyrifera/nutrient composition/acid detergent lignin/fermentation quality分类
农业科技引用本文复制引用
陈谭星,魏攀鹏,栗焕楠,范毅,张璐璐,蒋亚君,吕文竹,王品胜..不同青贮添加剂对构树青贮营养成分及发酵品质的影响[J].饲料研究,2025,48(1):175-179,5.基金项目
河南省科学院基本科研业务费项目(项目编号:240614033、230614047) （项目编号:240614033、230614047）
