I search this a lot of differant ways and couldn't find a answer. Poult started having slimy very dark brown poop. I scooped it out to take a closer look. I did not see blood. I am feeding Dumar feed. I can not find on bag anywhere that it is medicated. I have some Duramycin-10 on hand if needed. Poult is acting fine eating and drinking active and sleeping. Should I be worried and treat them or just wait and watch.They got a bit of hard boiled egg yolk this weekend. Otherwise it has just been feed. This is my first poults ever. Help.