Hi Junebuggena,
Not to disagree, but do you have any references for this? I know different breeds vary, a perfect example is the Leghorn eats less and lays more. But I've never read that blue eggers need higher protein intake than other chickens. Again, its a reasonable statement, but is it based on your experience, or do you have literature as well? It would seem that the claim about "Easter Eggers" is a bit broad for it to be true, since it could include Legbars (or my Silkaucanas

) or else it has to be linked to the blue egg gene.
I have found that my Ameraucanas & Araucanas and Easter Eggers that are a mix of the two, lay year round in hotter climates; in the hottest part of the summer, when others stop, I still have blue & green eggs. This hot weather tolerance must be linked to the Araucana blood and its native South America, but its only my observation -- even though it makes sense to me, its possible that its a coincidence.