The study was conducted to detennine the efficiency of microorganism preparations (secondary EM) in environmental remediation chicken breeding at Tam Dao, Vinh Phuc province. The results showed that, using probiotics make biological padding for poultry in Vinh Phuc province in 2013 gave very good results in improving the production environment, reduce odor of the barn. NH3 emissions decreased by 5.71 times
H2S decreased by 4.48 times compared with traditional breeding methods. Levels of N, P, K in fertilizer increased, namely: total nitrogen by 1.41 times
Phosphorus total increase of 1.62 times
Kali total increase of 1.58 times, which increases the quality of the fertilizer. Meanwhile microorganisms in the barn tend to decline. Using preparations viable microorganisms for poultry bring economic efficiency, environmental performance and increase people's income is higher than traditional fanning methods. Probiotics (secondary EM) has been well received as a solution to ensure that agriculture sustainable development and environmental protection.