降低人工饲养和饲料对水产养殖水体影响的措施

养殖废水的排放会导致水体富营养化,破坏水体自然生态系统.控制养殖废水生成是必要的,以保持可持续的水产养殖发展.由于饲料是水产养殖的主要废弃物来源,水产养殖废弃物的管理应通过饲料配方或饲养策略来进行.高消化日粮是解决和降低固体废物排放的有效方案.通过选择饲料原料和饲料加工以提高营养有效性,可进一步减少固体废物.通过控制饲...

Measures to reduce the impact of artificial feeding and feedon aquaculture water quality

The emission of waste from aquaculture operations can lead to eutrophication and destruction of natural ecosystem in receiving water.A controlled waste production strategy is necessary to maintain sustainable aquaculture growth into the future.Because feed is the main source of waste in aquaculture,the management of aquaculture waste should be carried out through feed formula or feeding strategy.A high digestible diet is an effective solution for solving and reducing solid waste emissions.Solid waste can be further reduced by selecting feed materials and processing feed to improve nutritional effectiveness.Increasing the fecal concentration by controlling feed intake can improve the efficiency of solid removal,which can reduce the proportion of solid substances in wastewater and improve the water quality of farmland.By ensuring a balance between protein and energy,fish use non-protein resources to reduce the waste of dissolved nitrogen.Through careful selection of raw materials and proper treatment,the waste of phosphorus can be reduced and the digestibility can be improved.Because feed waste is the main component of aquaculture wastewater discharge,appropriate feed ration and stage feeding method should be adopted.