About a month ago what little egg production we had (1 a day) completely shut down. We havent seen an egg for almost 3 or 4 weeks from any of our eight hens. 4 of the 8 look TERRIBLE. Neck feathers are all but gone and the coloration in their plumage is very dull and sickly looking. Their combs have gone from red to a light pink or white. All hens are about 8/9 months old. I didnt think that chickens moulted until after their first year.??? Also...They have gone the first month of winter without a light in the coop. Yesterday I installed one and would like to get egg prodcuctivity back up and running for the rest of the winter. Should I just introduce the light for an extra 4 or 5 hours a day...right away or slowly move them into it? Anything other recommendations for me to gets these girls back on track and healthy??