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Effects of Different Additives on the Silage Quality of Alfalfa Fibrous Residues

XUE Yan-lin1,2,BAI Chun-sheng1,YU Zhu1,SUN Jie2,SHAN Zhan1,SUN Juan-juan1(1.College of Animal Science and Technology,China Agricultural University,Beijing 100094,China;2.Institute of Grassland Sciences,Inner Mongolia Academy of Agricultural and Animal Sciences,Huhhot,Inner Mongolia 010030,China)  
Alfalfa fibrous residues(AFR) were ensiled with different additives,in order to study the effects of different additives on the silage quality of alfalfa fibrous residues.There were 17 treatments including control,sucrose(2%,3%,3.5%),corn flour(5%,7.5%,10%),formic acid(0.2%,0.3%, 0.4%),lactic acid bacteria(2.5 g/t),lactic acid bacteria + sucrose(2.5 g/t+2%,2.5 g/t+3%,2.5 g/t+3.5%) and lactic acid bacteria +corn flour(2.5 g/t+5%,2.5 g/t+7.5%,2.5 g/t+10%).The results show that the fermentation quality of control was poor;sucrose,corn flour and formic acid improved the fermentation quality;lactic acid bacteria did not improve the silage quality of the AFR silage;lactic acid bacteria combined with sucrose or corn flour didn't improve the quality of AFR silage compared with the addition alone of sucrose or corn flour,respectively.
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