My original hens 16mos are going through a molt now. They are looking kind of tacky with no real bald spots. Some days all will lay an egg and other days just about half of them are laying. I have been giving them raw fish scrapes about 2x a week but have been wondering if they could benefit from dry cat food also. Their diet now is laying crumbles (16%) eggs shells for calcium and as a treat fresh tomatoes and raw fish. If I feed the dry cat food how much should I use??