乐山地区地源性饲料资源的营养成分、利用方式及畜禽生产应用OA

With China's livestock industry moving toward green development and antibiotic-free produc-tion,the demand for low-cost and environmentally friendly feed resources has become increasingly urgent.As a result,the development of locally-sourced feed resources has gradually become a major focus in the field.These locally available feed materials can help reduce production costs,ease the shortage of conven-tional feed ingredients,and promote sustainable livestock production.Leshan,located in the southwestern part of the Sichuan Basin,is rich in agricultural resources and is known for its distinctive industries such as tea,citrus,and traditional Chinese medicinal herbs.The processing of these products generates large amounts of agricultural by-products,including tea residues,citrus pulp,and herbal dregs,which have already been partially utilized in local livestock and poultry production.However,the overall utili-zation rate remains low,and processing methods are often not standardized.Scientific and efficient use of these resources can further improve resource utilization efficiency,lower farming costs,reduce environmental pollution,and support the sustainable development of animal husbandry.This paper provides a systematic overview of the nutritional composition,utilization methods,and current applications of six common locally-sourced feed resources in the Leshan region,with the aim of offering a reference for their effective use.