Ok a friend brought me 8 grown turkeys 5 hens and a gobbler so I have a huge barn that is divided by a huge door, I let all my birds free range so after a day or two I let them all out to free range, I have a cochin hen that was sitting on 3 turkey eggs and 2 hatched so I went and bought her 7 day old turkeys to give to her so about a 2 week later Then I noticed 2 of the baby chicks and 3 of the baby turkeys had some kind of respiratory problems so I treated them with Vet Rx then 2 days later as I went to the barn 2 of the turkey hens were flopping all over the ground and they died i was so heartbroken i didn't no what to do to help them, so a few days later 3 of the baby turkeys did the same thing, So i got one of them and took it to the Vet he said it was something respiratory and gave me lincomycin-spectinomycin to put in their water for 7 days it's been 3 days and now the gobbler and another hen is acting like his sick, I haven't seen him eat in 2 days he just stands there with his wings down.i noticed this morning that he has yellow in his poop idk what to do any help would be very appreciated