微生物蛋白资源的开发及畜牧生产应用研究进展OA

China's supply of protein feed is highly dependent on soybean meal and other sources,with a single structure and external risks,making it urgent to develop diversified new protein resources.Microbial proteins,produced mainly from bacteria,yeast,filamentous fungi,or microalgae,can be prepared using agricultural by-products,industrial wastes,and unconventional carbon sources such as methanol,methane,and syngas.They offer advantages including short production cycles,minimal constraints from land and climate,scalability,and sustainable supply.This paper reviews the classification system and nutritional characteristics of microbial proteins,optimization of process conditions,strain selection and modification,and quality and safety considerations,summarizing their application in replacing soybean meal or fishmeal in feeds for pigs,poultry,ruminants,and aquaculture.It also analyzes the factors limiting their industrial development and proposes prospects for industrialization driven by multi-substrate coupling,full-chain traceability,and formulation methodology.