添加甲酸对白花草木樨青贮品质的影响  

The Effect of Formic Acid Additives on Sweetclover Silage Quality

作　　者：杨富裕[1] 周禾[1] 韩建国[1] 

机构地区：[1]中国农业大学草地研究所草地科学北京市重点实验室,北京100094

出　　处：《草地学报》2004年第1期12-16,共5页Acta Agrestia Sinica

基　　金：国家"九五"科技攻关项目"华北农牧交错带草地畜牧业高效发展技术"(96-016-01-04)资助

摘　　要：在收获后经过0、8和30h晾晒的初花期草木樨(干物质含量分别为27.36%、38.69%和44.98%)原料中,加入甲酸(添加量为2.5、4.0和5.5ml/kg)进行青贮。结果表明,添加甲酸能使草木樨青贮料氨态氮含量降低,并保存较多的可溶性糖;添加甲酸4.0ml/kg对三个干物质水平草木樨青贮均有良好效果,但以干物质含量27.36%组效果最好。The harvested early bloom sweetclover was left to wilt for 0 hour, 8 hour,or 30 hours. The plants contained various amount of dry matter of 27.36%, 38.69%, or 44.98% separately. Each pile was ensiled with formic acid at a rate of 2.5 ml/kg, 4.0 ml/kg and 5.5 ml/kg respectively. Results from the experiments showed that haylage (DM44.98%) added with formic acid decreased its ammonia nitrogen and increased its WSC and CP content.For hay of different percentage of dry matter,the application of formic acid (4.0 ml/kg) exhibited a satisfactory effect on silage fermentation,preferably on hay containing 27.36% dry matter.

关 键 词：草原学 草木樨 甲酸 干物质含量 青贮品质 

分 类 号：S551.6[农业科学—作物学] S816.53