I had 14 chickens, over the last month we lost two, one had a gaping wound on her back end (i posted a while back about Big Mama she recovered) I believe it was from missing feathers and either she was picking at it and then the others probably joined in and she succumed to death. I am mad because we had Big Mama with the wound on her bum but we caught it in time to heal her and then put her out in the flock , unfortunately i didnt catch this wound and it killed this chicken. Then we found another chicken laying dead in the pen with no apparent injury so we are at a loss for this one. Right now all my chickens have bare bottoms and it is going onto some of there legs and around the sides and top of the tails. I am going to treat for mites hoping that this is the problem. I have DE - food grade and i sprinkled that in the coop and out in the pen, but what is the procedure for this , how often and how much. Can we eat the eggs that they produce while this is around? do you treat the chicken itself?