白腐真菌预处理农作物秸秆的研究进展  

Research Progress on Pretreatment of Crop Straw with White Rot Fungi

作　　者：周晓洁 赵国琦[1,2] 程志强 林淼 ZHOU Xiaojie;ZHAO Guoqi;CHENG Zhiqiang;LIN Miao(College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;Animal Nutrition and Feed Engineering Research Center,Yangzhou University,Yangzhou 225009,China)

机构地区：[1]扬州大学动物科学与技术学院,扬州225009 [2]扬州大学动物营养与饲料工程研究中心,扬州225009

出　　处：《动物营养学报》2024年第8期4823-4834,共12页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家奶牛产业技术体系(CARS36);江苏省高校优势学科建设工程自助项目(PAPD)。

摘　　要：农作物秸秆资源丰富,对反刍动物来说是一种低成本的可再生粗饲料来源,但秸秆在饲喂动物时其高含量的木质纤维素限制了反刍动物瘤胃微生物的作用,以致不能被有效利用,在实际生产中缺乏理想的处理方式,没有开发出其应有的营养价值。白腐真菌预处理可以提高农作物秸秆的消化率,该菌能够在营养价值相对较低的秸秆上生长,可以通过分泌1种或多种木质纤维素降解酶以及自由基等,将木质纤维素分解为能够被反刍动物消化的糖类等小分子化合物。本文就农作物秸秆的饲料化应用现状、处理方式展开讨论,并对白腐真菌处理木质纤维素的作用机制和影响因素以及在动物生产上的应用进行了综述,旨在为提高农作物秸秆的营养价值提供理论参考。Crop straw is rich in resources,which is a low-cost and renewable roughage source for ruminants.However,the high content of lignocellulose in straw when feeding animals limits the function of rumen microorganisms in ruminants,so it cannot be effectively used.Its nutritional value has not been developed due to a short of ideal treatment method in practice.White rot fungus pretreatment is considered to be one of the methods that can effectively improve the nutritional value of crop straw.The fungi can grow on the lack of nutrition straw and decompose lignocellulose into small molecular compounds,such as saccharides,that can be digested by ruminants by secreting one or more lignin degrading enzymes and free radicals.In this paper,the application status and treatment methods of crop straw as feedstuff were discussed,and the mechanism and influencing factors of white rot fungi in the treatment of lignocellulose,as well as their application in vivo and in vitro were reviewed,which provided a theoretical reference for improving the nutritional value of crop straw.

关 键 词：农作物秸秆 白腐真菌 木质纤维素 木质素降解酶 

分 类 号：S816[农业科学—饲料科学]