My 3 barred rock chickens are a year old. We got a rooster about 6 months ago and had to give him away due to chickens loosing feathers on their wings and backs. We used to get 2-3 eggs a day but now I am lucky if I get an egg a day. Do you have a suggestion as to why they have slowed down their egg production? They don't eat as much either (I give them egg laying pellets). I have added vitamins in their water too. They act fine and I give them green grass to eat but something is going on. . .