Kaytee has several different formulas - some contain ethoxyquin, some do not. Similarly, some formulas are what I'd personally consider pure crap, others are fairly similar in many ways to foods that are recommended as acceptable. The moral of the story for the OP is, research on your own what makes a food "good" or "bad," and then educate yourself on the ingredients commonly used in feed and make up your own mind on what you want to feed and what you don't. This is a good website to get you started on basic definitions, though there are definitely others out there that cover more in depth - (broken link removed).
Once you know what makes a food good or bad, you can start comparing ingredients yourself rather than relying on what anyone here or in any other community might assert. I personally have found excellent feeds available locally that I'd never have even considered back in the days when I only asked here what was good and bad and I do not consider Oxbow a "good" food for a variety of reasons. The same is true of Kaytee - I wouldn't feed it, but that's after doing my own research and forming my own conclusions rather than relying on someone else's opinion for the decisions regarding the diet of my animals.