The Theory-Analyzed Approach on Technology Selection and Optimized Scale of Pig Feeding Intensiveness:Based on the Environmental Costs Perspective

摘要

Intensiveness is a trend in Pig Industry,and waste treatments brought by Pig Feeding Intensiveness(PFI)become the focus concerned of the world.Internalization of environmental costs is considered to be the best way to solve the coordinated development of the economy and the environment.In order to enhance the cognition of internalization of environmental costs,as well as to guild the producers to determine the optimized scale of PFI,the research built a technology selection decision-making model,of which the Pig Farms as the core,supporting a certain percentage of planting,through a comparative analysis of the core technology of pig waste concentrated processing mode.Then the article analyzed the input costs and running effects of waste treatments of PF,discussed the selections of anaerobic and composting Feeding and Fermented Bed Feeding under different scales,and optimized scale of established waste treatment technology.With the analyses,we found that price and carrying capacity are proportional to the optimized scale,while various costs and sewage taxes are inversely proportional to it.