That fermented feed has many benefits for chickens is undisputed; many studies have been done and books and articles written documenting the value of fermentation for poultry, so I'm not going to re-invent the wheel here. (Sources & further reading can be found below.) This article outlines the basic benefits of feed fermentation for backyard chickens and shows how to do it in 3 easy steps. Fermenting is easy and the advantages for chickens, significant.