I've been very happy with Purina feeds and have been feeding them only Purina Flock Raiser for awhile now. However here lately I've noticed a change in the feed. I noticed that there is a lot more dust in it. I feed my chickens in a large pan so it is very easy to notice the large amount of dust left behind now. I've also noticed that the color of the feed has turned significantly more yellow. I'm assuming this means there is lots more corn now in it than before. Even my hubby (who doesn't care for the chickens) noticed the difference in color, we had some of the older feed left over. I was wondering if anyone else has noticed this change too or did I just get "the bottom of the barrel" so to speak.