I was at a 4H meeting the other day and was told not to constantly feed laying feed to my laying hens, He said it will make them lay too often, they will run out of eggs sooner and it's not good for them to lay that much. He said to switch between laying and flock raiser. My 23 hens have a food container inside the coop that always has food in it, open yard to roam in (50x130) and don't seem to eat to much "food". They get scraps from us also. What should be feeding them?