Nutrena Nature Wise Feather Fixer in the 40lb. bag with Mite-Fighter Technology can be fed year round if desired. It solves what to feed your flock to help get them through molt quicker and it helps prevents mites. Optimal protein and energy level for chickens regrowing their feathers. Along with added organic trace minerals, prebiotics and probiotics, this is a natural source of greens when grass is limited.