The only problem with Purina I have found is the 16% protein (just like most around here), the lack of animal protein and the price. I have had nothing but problems with feather picking for 5 years since using Purina. Nothing else has really changed. I am really tired of trying to up the protein and get animal protein, so I'm either going back to the mill I used for 11 years prior (animal protein) or to the local farmer who grinds mash according to the lionsgrip website recipes using Fertrell balancers. If I go back to him it is mash, but I didn't have a problem with it & I will use 19% broiler grower with fish meal in it. I can get Agway 21% pellets if I drive 15 miles, but I don't think that has animal protein either. I really must decide!