I agree it sounds like vitamin issues. I've never had a problem with dumor feed. Poultry nutridrench is my go-to for anything "off" with chicks. You can just give a little on your finger tip straight out of the bottle with fresh water afterwards. I wouldn't think Marek's either if they're still in the brooder, and only 4 weeks old.
It wouldn't hurt to make sure they're getting some electrolytes and probiotics in their water and double check for cleanliness (in case there's something bacterial going on) as well.
Sorry you are going through this. Don't you wish they could just tell you what's wrong?!
It wouldn't hurt to make sure they're getting some electrolytes and probiotics in their water and double check for cleanliness (in case there's something bacterial going on) as well.
Sorry you are going through this. Don't you wish they could just tell you what's wrong?!