I have it in crumbles and pellets at my LFS... unless they quit making the pellets in this past month.Purina Flock Raiser is crumbles only, but Nutrena make a 40 pound bag of all flock pellets.
Also, if I'm not mistaken... Nutrena is made by Purina.
That's a nice article... but it's kind of fear mongering.
Even though I used to tout and spread the same information... with more research I found that the kidney issues caused by EITHER too much calcium OR protein.. is more often than not about predisposal to it genetically. There are many factors at play.
On top of that the whole animal protein thing... What the birds can't thrive without is the AMINO ACIDS which are ADDED in to most feeds.
Also, I get your persistence about the subject (and really do agree for the most part) but from the very first post, I gathered that the OP was already in the process of trying to switch feeds.

Also, I find genetics to MORE at play with lay onset then feed. I have fed 20% flock raiser with OS on the side for a few years now... and still had a Wyandotte not lay until 8 months, a Delaware not lay until 9 months, and a Leghorn not lay until 24 weeks (6 months)! I NEVER diminish my feed with treats either.
