My 6 girls that are now only a year and a half old have stopped laying. Once the heat set in last year we get around 110 during summer we live in southern Nevada. Nothing maybe one. I have tried everything. I give them vitamins fresh veggies. I do give them corn everyday. I’ve wormed them. I read not to give them treats in am because it may stop egg production. So I refrain. So know give in pm before they go to bed. Like I said first it was heat then they molted and now the cold. Any suggestions I’m at a loss.