Abstract: This study produced banana stem single storage and the wheat bran mixed silage to research on the effect of fermented green juice and cellulase on the ensiling quality of banana stem and wheat bran mixed silage.There were a banana stem single silage group (BSS) and 8 banana stem wheat bran mixed silage groups.They were a control group,added 2 mL/kg fermented green juice (FGJ) group,added three levels (0.05,0.15 and 0.25 g/kg) of cellulose (CEL1,CEL2 and CEL3) groups,respectively,added three mixed (MIX1:FGJ+CEL1,MIX2:FGJ+CEL2,MIX3:FGJ+CEL3) groups.Each treatment was repeated 3 times.The materials were ensiled at room temperature and opened 60 days later.The fermentation quality and the chemical composition were analyzed.The results showed that compared with the BSS group,the GLR and pH of the CON group were significantly reduced (P<0.05).Compared with the CON group,the DM,DMR and WSC of the additive groups had different degrees of increase,the NDF,ADF and AN of them were reduced.Compared with the FGJ group,the DMR of the CEL groups and the MIX groups was extremely significantly increased (P<0.01).In the CEL groups,the fermentation quality was more and more better with the increase of the CEL level.Compared with the MIX1 group,the NDF content of the MIX3 group was significantly reduced (P<0.05),but the DMR was significantly increased (P<0.05).Compared with the CEL group,the corresponding MIX groups had different degrees of improvement.In conclusion,adding wheat bran in the banana stem silage was conductive to improve the fermentation quality.The effect of adding cellulose was better than the effect of adding fermented green juice,and the effect of mixed them was the best.The fermentation quality of mixed them was better with the increase of cellulase.

Key words: fermented green juice; cellulase; banana stem; wheat bran; fermentation quality