Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (11): 45-49.doi: 10.11924/j.issn.1000-6850.2014-2548

Special Issue: 生物技术 水稻

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Effects of Xylanase on Quality of Rice straw Silage

Zhang Wen-chang,,, and   

  • Received:2014-09-19 Revised:2014-12-16 Accepted:2014-12-18 Online:2015-05-06 Published:2015-05-06

Abstract: This study aimed to prove the effects of different xylanase addition levels on quality of rice straw silage. Three treatment groups added with 20, 40, 80 mg/kg of xylanase respectively and a compared group were set up with conventional and low moisture of rice straw silage. They were named XYL1, XYL2, XYL3 and CON. Each treatment was repeated 3 times. The materials were ensiled for 60 days and opened. The fermentation quality and the chemical composition were analyzed. Compared with conventional silages, DMR (Recovery rate of dry matter), pH of low moisture silages significantly increased (P<0.01). In the conventional ensilaging, WSC (water soluble carbohydrate) and DMR increased by adding xylanase (P<0.01, P<0.05). In the low moisture ensilaging, as the content of xylanase increased, the pH value was decreasing (P<0.01, P< 0.05), DMR had a rising trend. Therefore, in the two moisture contents of rice straw silage, adding xylanase can significantly improve the effect of silage. The effects of XYL3 group in both conventional and low moisture ensilaging were the best.