I have 1 year old AGH's. I feed mangles, turnips, rutabagas, and apples that I cook on the woodstove over night. I then mix in my grain mix which is 4 parts oats, 2 parts barley, 1 part corn (non-GMO, organic), and 1 part boss. I mix in enough goats milk to make it oatmeal consistency. This is their afternoon meal. They get about 3 cups each. They also get alfalfa/grass hay free choice. I live in the high desert so their pasture is gone this time of year. In the summer they eat pasture (if you can call it that), alfalfa/grass hay and milk. My area is extremely deficient in everything but iron. Would you recommend DE as a supplement or is there a loose mineral for pigs like there is for cattle? All my feed is organic and the grains are whole. My pigs look good to me but I just had one get pneumonia so I worry about immune systems. The weather has been terrible too. I've only had these pigs for a year and before that in high school I had yorks that were raised in pens and fed commercial hog feed. I don't want to find out the hard way that I'm not meeting their nutritional needs. Any suggestions? Thanks in advance!