Hi here is my problem. I have 25 hens and I have three with diaherhea and very dirty bottoms! I have been out of town for the last 6 days, my oldest son has been watching them. Everyone seems fine the 3 girls that have the very dirty bottoms are two for my b-rocks and one black star, but they eat, had nice clean water. They all came running to me when I got home and ate some boss. I have just never seen them with such a dirty bottom or had a diahrhea problem?? They have not had there yogurt and oatmeal for a week could that be it?? No one is acting sick our looks sick everyones combs look nice and red. any info you have I will love you all Know so much. Thanks Erica These hens will be a year old in May and I have been getting 13-17 eggs a day so I belive they are still laying!