Hmmmmmmmmmmm, maybe this will help, it is hard to find a university study of gout in poultry, human gout keeps coming up when googled~~~~~~~~~Thanks for the link Chickielady but that article didn't say anything about gout being caused by feeding high protein. It does say that "Possible causes for this could be obstruction of ureters, renal damage or dehydration" and I find that interesting but not likely to be connected to higher protein feed. That said, I know you have been to many more shows than I have (I'm just getting started showing) so you've undoubtedly seen plenty of chickens that have not been fed correctly...but I'd love to be able to read more about how high protein feed really affects chickens. Any other links for me?
Thanks,
DD
http://www.2ndchance.info/gout.htm
Here is another University study

http://www.ncbi.nlm.nih.gov/pubmed/16359121
Another:
http://www.peteducation.com/article.cfm?c=15+1829&aid=2497
There is more but you have to hunt.
Mainly the issue is that layers and other smaller, less meaty birds do not need more protein, so don't give it to them.
They do well on less protein.
Some people think feeding "the good stuff" as they call it, is better for their bird.
In other words they think that the higher the protein, the better the feed, and they want the best for "their babies"

It is a good way to kill them with kindness.
Meat birds (aka: Cornish Cross) grow so freakishly fast, that they must have high protein, but even then, I only use 27%.
The Game bird starter (startena) can be used for them when they are baby chicks, up to a week or 2 old.
Turkey starter should only be used for ducks, geese & turkeys.
I use Flock Raiser pellets sprinkled with a bit of scratch for my ducks & turkeys.
Hope this helps.