I just always assumed it did. 23% protien is pretty good. The highest protien I've seen here has only been 18% with the 50# bags. I use medicated starter. I'm switching to unmedicated this weekend. I have 3 chicks that are getting ready to lay and my youngest two are over 2 months. I've always fed extra protien and I give my chicks vitamins and probiotics as well. They are extremely healthy and look really good. My neighbor across the street does not give them vitamins or probiotics and you can notice the difference big time. We got our chicks from the same place. She mentions all the time how mine look so nice.
I've never worried about the feed. I figured if it's made for chicks, there shouldn't be a problem. There is not a choice of brand once we switched to 50# bags.
