添加甲酸对构树青贮品质和营养成分的影响  

Effect of formic acid on silage quality and nutrient composition of Broussonetia papyrifera

作　　者：陈婷[1] 刘悦 孙蓉 字学娟[1] 李茂[2] CHEN Ting;LIU Yue;SUN Rong;ZI Xue-juan;LI Mao

机构地区：[1]海南大学林学院,海南儋州571737 [2]中国热带农业科学院热带作物品种资源研究所,海南儋州571737

出　　处：《饲料研究》2022年第4期103-105,共3页Feed Research

基　　金：中国热带农业科学院基本科研业务费项目(项目编号:1630032021003);农业农村部项目(项目编号:16210056);滇桂黔石漠化地区特色作物产业发展关键技术集成示范项目。

摘　　要：试验旨在提升构树青贮品质,探究添加甲酸对构树青贮品质和营养成分的影响。试验以构树为材料,对照组(CK组)不加入添加剂,直接青贮;各试验组分别添加0.5、1.0、2.0、4.0 mL/100 g的甲酸。青贮30 d,测定构树青贮饲料的营养成分含量、pH值以及有机酸含量。结果显示:构树直接青贮处理的发酵品质不佳,添加甲酸后青贮饲料的pH值、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量均显著降低(P<0.05),乳酸含量、有机物(OM)和饲料相对值(RFV)均显著提高(P<0.05)。研究表明,添加最低浓度为0.5 mL/100 g的甲酸构树青贮品质和营养价值可以达到较好的效果。The experiment was to improve the silage quality of Broussonetia papyrifera, to investigate the effect of formic acid on silage quality and nutrient composition. The experiment took Broussonetia papyrifera as the material, the control group(CK group) was silage directly without additives, and experimental groups were added 0.5, 1.0, 2.0 and 4.0 mL/100 g formic acid, respectively. The content of nutrients composition, pH value and the content of organic acids in Broussonetia papyrifera silage were determined after silaged for 30 d. The results showed that the direct silage treatment of Broussonetia papyrifera made the fermentation quality poor. After the addition of formic acid, the pH value of silage, the content of NDF and ADF decreased significantly(P<0.05), the content of lactic acid, OM and RFV increased significantly(P<0.05).The experiment indicates that adding the minimum concentration of 0.5 mL/100 g formate silage can achieve better quality and nutritional value.

关 键 词：构树 甲酸 营养成分 青贮品质 

分 类 号：S816[农业科学—饲料科学]