Further clarification: The birds were not all on Terramycin until a week ago, and they are 3.5 weeks old right now. Btw the bird with the eye issue has totally cleared up.
I don't think Terramycin is what did me any good, actually. I think they have Aspergillosis (Brooder Pneumonia). My chick that got sick today died, sadly. But I was looking at more and more poultry illnesses, and this seems very likely. His breathing was more and more labored as he got closer to the end, and it was like he was sleepy... as with my other chicks. In the last hour he was wheezing, and close to the end there was also some gurgling and bubbles from his beak. Brooder Pneumonia also doesn't strike all the chicks at a time... which explains why it's only one or two here and there getting this and dying.
I think I'll stop the terramycin tomorrow. It's been very hot here, very rainy, and VERY humid. Perfect environment for a mold or fungus based sickness. I'm going to start changing 100% of the litter every single day, and I might just put the birds outside in a small pen and let the sun shine on the brooder box every day too. They're almost out of the brooder, but for their remaining time in it I think that's what I'm going to do.
At least now I have a pretty good idea what's going on.
I don't think Terramycin is what did me any good, actually. I think they have Aspergillosis (Brooder Pneumonia). My chick that got sick today died, sadly. But I was looking at more and more poultry illnesses, and this seems very likely. His breathing was more and more labored as he got closer to the end, and it was like he was sleepy... as with my other chicks. In the last hour he was wheezing, and close to the end there was also some gurgling and bubbles from his beak. Brooder Pneumonia also doesn't strike all the chicks at a time... which explains why it's only one or two here and there getting this and dying.
I think I'll stop the terramycin tomorrow. It's been very hot here, very rainy, and VERY humid. Perfect environment for a mold or fungus based sickness. I'm going to start changing 100% of the litter every single day, and I might just put the birds outside in a small pen and let the sun shine on the brooder box every day too. They're almost out of the brooder, but for their remaining time in it I think that's what I'm going to do.
At least now I have a pretty good idea what's going on.