President Felipe Calderón stressed that with these bio-digestion systems, organic waste is processed by swine farms for the generation of bio-gas, at the same time producing electricity that can be used by the same farms. This measure translates to savings in production costs for the farms and an important benefit for the environment.
http://www.sagarpa.gob.mx/saladeprensa/boletines2/Paginas/2011B210.aspx