feeding cornmeal????

I got a barrel I cut in half and made a big pot out of it. All left over scraps from quartering deer up go in it and I boil it until it all falls off the bone. If I can get fat from heb or butcher shops I will put that into also. Then I just add cornmeal until it makes a thick mush and there is enough to feed my dogs. I don't do this all the time but I will this time a year when I am killing does everyday and have plenty of meat to add. There are probably people out there that have real recipes or really know what they are doing but I know my dogs will get fat on this if I start giving too much. I keep them lean and they will hunt just fine off this mush as they would using any other high powered dog food. Oh and while feeding this I will give them a once a day all around dog vitamin.