I have 17 hens. 9 Dominiques, 8 Rhode Island Reds, and they haven't layed any eggs for 7 weeks. I did get 1 a week ago. Their 15 months old. They had lost back feathers from roosters mounting them and I switched them to eating mainly fodder ( half barley half field peas ).Once they starfed eating fodder they began growing feathers back. Now their feathers are grown back and only the 1 egg. Should I give them sunflower seed fodder, more calcium. please help.