ryan it is not tht simple. As Dr. Griffin explained to me, the source of the protein makes a huge diff in growth and palatibility. In other words he said (paraphrasing and hope close to the truth)he could make a 40% proetine pellet from chicken feathers but it would be some very poor growth. I was arguing using x brand 36% protein vs gfc 32% protein. I do not think he was just towing the purina company line. I felt after the conversation the gfc was slightly better than 36% to spite it being lower in protein due to the protein source, lipids, other items, etc.
however it has been a tough sell to clients coming to buy fish food from us. The diff is slight so I honestly now have southern states little strike in stock here. I tell clients if buying from store ask for GFC or 36% protein vs, cheaper x brand 32% protein I do feel that it is much better if feeding bluegill as target.
