I hope no one minds but I am writing everyone's feed response down in a notebook for comparison, one pattern I see is the layer feed, I have never fed layer so I am curious for the reasoning of it..
Ray we have more of those panels that we plant grass under if you need some....speaking of grass and bugs for that matter, how would you determine what percentage of protein they fall at, for they must be different according to type and I would assume even location plays a role...
Pellets seem to ferment better than mash, I find area's of lumpy spots with mash, might be the way it sticks to the whole grains.....but when feeding dry I have less waste with mash
A couple of references you might get some info from...
http://extension.psu.edu/animals/da...ture-and-grazing/pasture-quality-and-quantity
http://pubs.ext.vt.edu/418/418-150/418-150.html
http://news.psu.edu/story/140750/2003/05/01/research/pasture-ized-poultry
http://dchealthybites.com/2013/10/02/the-chicken-and-the-egg/