Conventional agriculture in general and animal breeding particularly may have a negative and long effect on the environment, while struggling for the increase of the production. The environment may be deteriorated by the proliferation of the sources and resources of pollution (chemicals, soil erosion, clearing, dejections). These destructive actions and the environment can be counteracted by man through the knowledge of biological laws of nature. The potential polluting factors could be transformed into factors of protection, improvement and conservation of ecosystem by the use of a non-polluting technology.