Investigation And Analysis Of Circulating Raising Pig Modle In Handan

The rapid development of the Chinese mass breeding pigs and the constraints of land circulation system lead to serious separation of planting and raising in pursuit of profit maximization as the goal of the pig and the behavior of the excessive use of veterinary drugs,additives,contains a lot of veterinary drugs and heavy metal residual waste after returning,serious impact on the environment.Traditional economic model is a kind of "resources-products-consumption-waste" one-way flow of linear process,lead to a lot of consumption of resources,serious damage to the environment,social public hazard events emerge in endlessly,caused people to rethink about resources and environment problems.Under this background,the circular economy as the starting point,through comparing the circulation farming mode and the traditional cultivation mode,to promote the development of circulation breeding model has important theory value and practical significance.On the basis of consulting a large number of literature and on-the-spot investigation first clear research thought and framework,the acquisition of handan city statistical analysis of survey data and information through the second-pollution circulation mode and traditional breeding pigs under the mode of data,the comparison of economic benefits,it can be seen that circulation breeding improves the economic benefits of the farms.Circulation aquaculture waste fermentation was used to the cycle of biogas as link farming,save the use of feed and fertilizer,biogas slurry as fertilizer make the environment protected,improve the utilization rate of forage grass and agricultural and sideline products and the planting of harvest;Outlet of farmland soil microbial species and drug resistance comparison test showed that farms because do not comply with the regulations for the drug use and abuse of antibiotics and hormone drugs,waste emissions at random,the pollution of farmland,make the outlet of the surrounding soil microbial species decline,rising rates of drug-resistant strains,in turn,will lead to soil microbial activity,fertility decline,affect crop production.In this paper,the experimental results will provide theoretical reference for safety assessment of aquaculture environment.