| Crustacean aquaculture,especially marine shrimp aquaculture,has an important commercial value and economic significance in the world.Of the global annual production of 7 million tons,over 60% is made up of shrimp.Shrimp farming has become the fastest growing part of aquaculture.With the active trade of import and export and the rapid growth of trade,many countries rely heavily on shrimp production.For now,shrimp farming has become Asia and Latin America.The fastest growing aquaculture industry.Since the vannamei shrimp(Penaeus vannamei)can grow rapidly at high density and can survive in various environments,it is now the species with the greatest amount of farming and the species with the greatest amount of agriculture and the highest economic output value of a single aquaculture in the world today,which accounts for about 80% of the world’s marine shrimp production.Currently,world shrimp production is mainly concentrated in developing countries,while the consumer market for shrimp products is mainly concentrated in developed countries.At the same time,developed countries continue to restrict export trade in shrimp products from major shrimp producing countries under various banners.Therefore,the competition between the major shrimp producing countries has intensified and the development of the shrimp industry is also facing a serious problem.challenges.my country has become the world’s largest producer of shrimp farming,among which the cultivation area and the production of P.vannamei are increasing year by year and it plays an irreplaceable role in the development of the world shrimp industry.How to promote the healthy and sustainable development of the Vannamei aquaculture industry,achieve development benefits and improve industrial competitiveness? It is the significance of the current issue to perfect the industrial layout and promote the development of the industry.This study uses the theory of comparative advantage as the theoretical basis and main basis for grasping the macroscopic structure of the Chinese mariculture production of P.vannamei as a whole and introduces the current production status of the Chinese production areas of P.vannamei: overview of the production,production area layout and farming methods In addition to the composition of production costs,the main content of the research is divided into the following two parts: First,calculate the comparative advantages of the main production areas of Chinese white shrimp at the production level,examine the comparative advantages of each production area and provide results for the production of Chinese Penaeus vannamei.Provide research plans and scientific references for the adaptation and improvement of shrimp production in the district;second,by combining different breeding modes,analyze and study the important factors influencing the comparative advantages of Penaeus vannamei production and discuss how to further explore and improve Penaeus vannamei production in China Potential,using the results of the empirical analysis to provide options policies for the production and development of vannamei production areas in China.Through the full application of the national resource cost method and the full comparative advantage index method,the comparative advantage level of each P.vannamei production area of my country is measured at the production level.At the same time,the three different crops are analyzed and the methods of P.vannamei are compared.mode.The results of the analysis show that the comparative advantage of P.vannamei production is the highest in the Pearl River Delta region,followed by the Yangtze River Delta region,and the comparative advantage in the Bohai Bay region is the third..the model has the greatest advantage among the three models,followed by the comparative advantage of the Bohai Bay region.For the land pond model,the factory model has the lowest degree of advantage.Through the analysis of the domestic resource cost coefficient(DRCC)correlation test of the three different cultural models of Penaeus vannamei and its main influencing factors,the cost of production per unit of land area has a significant positive correlation with the DRCC,which means that the production of Penaeus vannamei is ongoing: the higher the investment cost per unit area,the lower the comparative advantage of its products.Again,analyze and study the DRCC inspection results and various input factors of specific manufacturing costs.The terrestrial pond farming model must increase yield,reduce feeding costs,equipment maintenance costs and land costs;high-end pond model must reduce fixed asset depreciation and labor costs,factory The model must reduce shrimp drug input,equipment maintenance costs,and loan interest costs.Based on the above analysis and research,combined with the current current situation,in order to further improve the comparative advantages of production and the global competitiveness of each production area and promote the development of the shrimp industry of my country,the following policies are proposed by the three aspects of input,organization and functioning of production and macroeconomic policies.Recommendations: 1.Focus on the integration of shrimp seedlings,feed and medicine,the "troika" to promote the rapid development of the vannamei aquaculture industry;2.Accelerate investment in innovation technologies and human resources and technical services to reduce fixed costs in the shrimp aquaculture investment process;3.Cultivate and support various forms of modern agricultural industrial management organizations to form an effective form of organization and operation;4.To improve the production development mechanism and related policies and support measures in the main shrimp production areas. |