Ok I'm pretty new at this but I have been experimenting with amounts of feed and quality of feed. I have 49 chickens 20 sexlinks (Although it looks like 1 could be a New Hampshire), 15 Rhode Island Reds, 14 White Leghorns, 1 Black Leghorn. From what I have searched on the site you could feed anywhere from 2ounces per day to 5 ounces per day of feed, The chickens have been laying for 2 1/2 months now however only around 30 eggs per day. I have a light that comes on at 3:30 am which provides about 14 hours of light this time of year. I have been feeding about a pound of food per chicken per week (which is on the least side of things) until 7 days ago when decided to feed more about 2 pounds per chicken per week. They also get goodies every day any where from watermellon to lettice, bread, table scraps ect. I was not giving them any oyster shell at all as I thought layer pellets would be sufficiant. I didn't have weak shells but when hard boiled they were a bear to peel and half the egg came off as well. I started oyster shell when I increased the food amount which was a 50/50 mixture of layer pellets and 23% protien turkey/gamebird feed. Which really has worked out well as the birds look good/health/strong. So my point? Today I had 41 eggs and most were larger. Is this a result of increased food amount? Or the oyster shell? The birds looked healthy with the lesser amount of feed however they seemed to be pretty agressive at feeding time. I was feeding once a day and have now for 7 days been feeding 2 times a day. Rhode Islands are also noted for agrresive behavor so I don't know if this feeding arrangement has mellowed them out but it does seem a little better. Comments please.