I have two hens they lay pretty good they are about 1y 9m old they are a white leghorn,rhode island red in Nov about the 10th I switched my feed to Ace-Hi big feeder laying feeds from star milling co in perris cal. I have not had an egg after that. Is it just me or what? They are not molting and the weather is about 34, Also I have a light that I put in that goes on about 4 in the morning. Dose anyone have any Ideas? Thank you.