Effects of cellulase and xylanase additives on fermentation quality and nutrient composition of silage maize  

作　　者：Shuqi Li Hui Wang Meicong Luo Banggao Wu Haoyyuan Duan Xiangli Ma Jian Ren 

机构地区：[1]College of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China [2]Forestry and Grassland Bureau of Qiaojia County,Zhaotong City,Yunnan Province,Zhaotong,Yunnnan 654600,China [3]Agricultural,Rural and Collective Economic Development Center of Chongxi Township,Qiaojia County 654600,China [4]Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China

出　　处：《Circular Agricultural Systems》2023年第1期64-69,共6页循环农业系统（英文）

基　　金：supported by the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDA26050301);YEFICRC project of Yunnan provincial key programs(No.2019ZG00902);Eryuan County Forage Industry Science and Technology Mission(No.202304BI090008).

摘　　要：The aim of this experiment was to determine the effects of cellulase and xylanase additives on the fermentation quality,chemical composition of silage maize.In the experiment,cellulase(0,0.25,0.5,1.0 g·kg^(−1))and xylanase(0,0.25,0.5,1.0 g·kg^(−1))in different concentrations were applied alone or in combination on silage materials.After 60 d ensiling at room temperature,the results showed that cellulase and xylanase have positive effects on silage quality and chemical composition of silage.Cellulase increased contents of water-soluble carbohydrate,crude protein and crude fat while decreased contents of ammonia nitrogen and total nitrogen,neutral detergent fiber and acid detergent fiber.For xylanase,it increased the crude protein and ether extract content.Interactive effects were observed in CP and organic acids.Therefore,the adding cellulase and xylanase improved fermentation quality and nutrition value of silage maize.According to the comprehensive evaluation of the membership function,the recommended adding concentration of cellulase is 0.5 g·kg^(−1) alone.When combined with xylanase,the concentration of both cellulase and xylanase were 0.5 g·kg^(−1) and 0.25 g·kg^(−1),respectively.

关 键 词：adding ALONE MEMBERSHIP 

分 类 号：S816.53[农业科学—饲料科学]