Hello, I'm trying to find ways to get my chickens egg production up. I've given them ample laying feed, supplemented with omega sups, given scratch grains and a flock block, plenty of fresh water, oyster shells mixed in with feed, and they free range most all day. Is there anything else I can try? I have 10 hens and get about two eggs per day. Hens are in prime laying years and do well in the summer.