I am thinking of buying organic grains to sprout for my ducks over the winter. I have heard that sprouting them will release extra nutrients so I figured it would be as close to grazing on grass that they will get this winter. Are any particular grains better than others for sprouting? Do any particular grains release specific nutrients that ducks need? Also, where would you recommend that I could buy these grains? I am looking for a price around $1 per pound or less (the same as my current duck feed).