Chickens like it, and it is a good source of protein. However, it also has anti-nutritional substances. Here is a link with a small study about feeding it to chickens: http://www.lrrd.org/lrrd13/1/impr131.htm
AFTER reading a bit of the afore-mentioned "small-study".....
It occurred to me...THAT... PERHAPS....Quinoa would be an EXCELLENT FEED to FERMENT for the use of Chickens ! -just MY GUESS -
-ReTIRED- P.S. I don't KNOW of a LOCAL source for Quinoa here. Perhaps it would grow in this area....IF a person had the extra area to use.
BUYING IT would likely be a waste of money, however....because there are many cheaper and sufficiently nutritious feeds available.