Well, let me add that I've been pleased of latewith Purina Advanced Show Formula, blue bag, with 16% protein and15-20% fiber, yucca extract, and papain, among other ingredients.
I don't want to say rabbit feed is a black art, but you've gotto figure some of it out for yourself based upon yourexperience. Almost everyone has an opinion and it may differfrom yours because their rabbits may react differently to a given feedthan your own.
Get the basics covered, like minimum protein level(I think Angorarecommendations are higher than most other rabbits), fiber level,sources of both of those, what kind of additive ingredients areincluded, low/no sugar levels,relativefreshness, etc., thentry different feeds that fall into the category(ies) you have definedas beneficial to you.
The thing is all feeds labeled similarly , from the same company(ies)are not always the same. Much of a feed's quality andnutrition depends upon the local mill and itssources. Companies will attempt to level out regionaldifferences, but will achieve differing degrees of success with thisprocess. You have to determine what is the bestfeedavailable for your buns in your specific locale.
Or, ask your local "experts," who've probably already gone through the process I described above.
Buck