I come from a breeding dog background. I know what good food is and the ratio to input to out put should be. The feed I was feeding before had no smell and little waste return for amount eaten. (sorry not a national brand) TSC chick started on first day feeding I noticed a odor in my brooder room that was not they before I changed feeds. Now the chicks poops have enlarge massivly like 4 times what they were. They have only been on the new feed 2 whole days. That is way to much output/waste for a good feed. Which means for the cost (Tsc is the more expensive) I am better off buying my other feed for more of it is digested instead of wasted. In this case wasted is filler that is not digested but just passes thru. For those that have a choise this info is for you. I know not everyone is lucky in that they have more than one place they can buy feed at. But checking online for a local place or your yellow pages for a feed store before buying at TSC is worth it trust me.