I had read on a poultry site something about changes in lighting program...that there should NOT be sudden increases in day length as pullets come into lay or lighting changes during lay. I know I've read on here that young POL pullets don't have to have the additional hours of lighting, but if they do will it be harmful for them? I just added a light to the coop a couple of days ago because of my slackers to hopefully trick them into thinking the days are longer & therefore making them lay. It comes on at 4am-8am. BUT I also have 3 almost 19-week old pullets that could lay any day now, or possibly at least in the next month or so. Should I discontinue the lighting? Is it going to affect the young pullets egg making factory in the long run to add lighting at this time? If so, I will deal with the lack of eggs from the older slacker hens to ensure the best production from these young pullets. I don't want to cause nothing to go crazy in their system to affect their egg production or quality if this is such a crucial time for them. If I should discontinue lighting (which was only added a couple days ago), should I do it gradually or just take it out period?