Ever since the huge melamine recall of pet foods and chickens I've been extremely skeptical of any processed animal feeds, especially ones with plant protein by-products.
My dogs are fed fresh raw meats and I'm starting to feed my chickens more and more fresh foods and whole grains. I'm calculating a ration and I'm satisfied that everything can easily be provide without needing to resort to " fast food for chickens " by Purina. I really think the reason bagged pet food and livestock feeds took off is due to our lack of knowledge and desire for fast foods, not because the bagged foods are superior in anyway. Back when I was a kid, it was rare to feed your horse anything but whole grains and hay. Now, you go to any stable or forum and everyone freaks out if you say that you're not feeding "Ultram" or "Strategy" or at least a ration balancer because for goodness sakes, how can you know if your horse is getting everything he needs?
Same with BYC. Every thread reads that way. Someone states they want to make a homemade ration and everyone jumps in and says NO, you can't possibly be as smart as Purina!
I'll get off my soapbox now. It's probably time to go eat some dry people kibble from Purina. Got to make sure I get all my vitamins and protein to stay healthy. Complete and balanced for every stage of life, grown in the sun, you know!