I have not read this entire thread yet, still working my way through it. But, when I came across this tidbit, I had to stop reading and write. What you are describing with your chickens, is what other farmers and ranchers have been noticing. Why aren't we up in arms about this? Why are we even giving this stuff to our animals? I wonder if any of you have been reading some of the research coming out about animals fed GMO's? It is pretty clear that this stuff is seriously flawed. Personally, I am afraid to eat it and rarely even eat meat unless it is organic because I don't want to eat from animals fed GMO feed. I've attached a link to a recent peer reviewed study from the University of Caen about rats dying premature deaths with huge tumors when fed GMO corn: http://www.naturalnews.com/037249_GMO_study_cancer_tumors_organ_damage.htmlWith you having a feed mill close, you are in a great position to get some good grain mixes that are fresh. I'll tell you something I've found out, though...for the past few years none of my chickens really want to clean up cracked corn. Use to be they would gobble it first thing but something has changed...I'm thinking it is the GMO and I have read studies done that indicate that animals just don't prefer it and even some wild animals will leave it and not eat it at all. Whatever the change, it makes the cheapest grain also the less preferable to the chickens...and I had forgotten that fact.
Even these meaties, who will eat anything that moves and most things that don't, will leave the corn and some of the wheat in the bottom of the feeder. When next I make a grain purchase, I'm sticking with barley as the biggest percentage and then adding some oats, then maybe will add some layer mash to fill it out.
There are other similar studies that I've read about GMO soy. All the studies I've read are frightening: early death, reduced fertility in future generations, tumors, cancer, and so on. I am not even mentioning the impacts on insects. This is serious stuff. We should not allow anyone to mess with our food supply, and yet, we have.