I have light brahmas 4 females one rooster. I just gave our rooster away 2 weeks ago, and just learned he had a heart attack. I didnt think anything about it till I found one of my females dead tonight. She had lost weight, this last month or so. I could feel she was very light when I picked her up. I have been using oat hay and alfalfa for the bottom of hen house and boxes....sometimes i use shaving. They are on the feed stores regular laying pellot feed. I have 3 hens left but one has a hurt leg (in joint) she gets around ok but she is why i got rid of the rooster I didnt want him to hurt her. Is there anything I should do so i dont loose my other hens?