My chickens love whole wheat sliced bread. They will fight over it. They are all laying hens and have 16% pellets all you can eat, also scratch feed supplimented and scraps but I worry about the bread. On of the hens flew up and took a whole slice-ran off and ate it then came back begging for more. They all can't seem to get enough! Am i giving them to much at a slice to 1 1/2 each? They are spoiled!