I have 3 slate turkey poults that are 7-8 weeks old. I'm 99% sure they have blackhead, so I've called a local vet to get some metranidazole 250mg. I think the dose is 1/4 pill (62.5 mg) a day for 5 days for them, since they are only a couple pounds, but I want to make sure I have the correct dose. I'm not really worried about them getting too much, I'm more concerned with it not being enough and them still having this. They have bright orange-yellow stools, and have been outside about 3 weeks. What I've found on here says that the incubation period for blackhead is 15-21 days, which is about how long they've been outside. They are not on the ground, but we did put some dirt in their pen to cover the floor. Looking back I realize I should have bought some sand or pellet bedding, but it's too late for that now. I'll worry about that after I get them started on their medicine. So 1/4 pill a day for 5 days to treat a 7-8 week old turkey poult?