I used to let my chickens free choice until I discovered that the rats were eating as much or more. Tried different things to fight the rats none worked. So we went to feeding them once a day in the evening when they came into the coop. Yhe idea was that they would eat it all and there wouldn't any left for the rats. They free range all day long and when they eat the layer pellets nightly it is like a frenzy. It seems as tho they are starving all the time.. I have about 40 chickens. How much should i b feeding them a day? Also I was thinking maybe I should feed them in the morning--when the rats are asleep??!! Suggestions please.