So I have 6 17 week old chickens (one's a rooster) that have been eating Purina Start & Grow medicated feed until now- They ran out and I was going to go buy some today, but my mom decided to do that for me, She ended up buying some Grower crumbles that should be fed to broiler chicks up until 8 weeks of age! This feed has 5% more crude protein, 2% more crude fat & 1% less fiber than their other feed.. My question is, will this have any negative effects on my chickens?! They are my pets, but i'm also raising them for their eggs. I want them to live a long happy life as well. They'll be eating this feed till it runs out, and it's 50lbs. If it matters, I have Buff Orpingtons & Easter Egger hens & a Barred Rock rooster.