In the process of excess surplus and shortage staggered in the pork market, State Reserve Meat System (SRMS) is a key tool for government to regulate the meat supply and demand and to mitigate the disequilibrium under the market mechanism.

This experiment makes use of ELISA to diagnose PRRS early in ecological pig farm and at the same time combines the construction of biological security system to reach comprehensive prevention and control against epidemic diseases.

The study of the construction of an ecological government and the cultivation of an ecological market as well as the relationship between them is an advanced and new subject in protecting and controlling the present ecological environment.