I have a flock of 47 hens 41 of which are 9 month old New Hampshire Reds and the others are 3 y/o RI Reds. I have one Rooster in with 1/2 of the hens. These new hens are just not laying. The older hens lay reliably and have through the summer. We were letting them free range but because of the lack of eggs we decided to keep them up for a while to see just who was laying. So, half are in a big pen area in the barn and the other 1/2 are in a chicken tractor. We were feeding the local feed store brand of layer feed 16%-I thought maybe that wasn't so great so switched them to Layena crumbles and will be starting the second bag today. We feed 1/4lb per hen. We also started adding Fetrell Nutribalancer 2 days ago. Yesterday I got 4 eggs and the day before, 8. Is it possible I'm not feeding enough? I do split the feed into different feeders so everyone gets some. I checked them for mites and didn't see any. They look really healthy and active. The one thing I haven't done is deworm them. Do they possibly need that and how do you do it? I'm really at my wits end here but need these girls to start laying, they are getting expensive!