why are people still telling me i need to feed an additional layer mash to my girls? 'but not too much or you will burn their system". my girls allready get a layer feed in pellet form. am i missing something here? i thought mash was the same thing, jut in a more powdery crumble form. even my husband is barking at me to get layer mash, becuase that is what his buddy does that gave us the chickens. anyone care to enlighten me on this, 'cause they are driving me crazy.