Rosco, I believe that the better the quality of the feed the less it takes. I feed Black Gold and 1 scoop full feeds 4 hounds and if I don't run them for a week they start to get too fat. The scoop I use is equivalent to about 1 and 1/4lb. of feed. If they don't clean their feed up I will cut back to the point that they do. I used to feed the cheaper feeds but my dogs ate more and looked worse. I have been feeding dogs for almost 50 years and tried about everything. Not that Black Gold is the best, there are others just as good and better but quality feeds are hard to beat and each feed has a reccomended feeding ration. Dogs that eat normally are pretty easy to care for compared to a finicky eater or one the inhales their feed.
Are you having issues with your dogs eating habits or the feed you are using?