i have over 50 hens that arent laying good...i get a dozen a day... I had a few with foamy eyes but i have gotten rid fo them.. however i did treat my whole flock with sulmet then duramycin 10.. Ive wormed with wazine then ten days later with pour on ivermectin.. still no improvement.. could it be the metal building there in is to hot ? they have shade trees to get under but they stay in the building most all day.. could they not be getting enough lite from staying inthere roosting building? I am so stunned on what to do... Ive done everything i no.. they are not moltin unless some of the new ones i got latley was comming out of molt , they was missing feathers but most all grown back now.. any ideas on what could be the issue on why they arent laying well. I dont thinkthey are old, they all look young and healthy to me. red cones. I feed they layer pellets everyday and fresh water i give them crushed oyster shells .. i have had a mite issue but i have been treating them with 7 dust and DE and now im using pour on ivermectin.. any suggestions???