Would you mind sharing the sites you found? I'm interested in learning.I have read that feed should be less than 15% oats, as more can cause diarrhea. I found some helpful websites (and you can too with a google search) that lists specific percentages of each ingredient as well as a list of ingredients and their corresponding percentage of protein so you can adjust your recipes to what you have on hand or that is available to you. I also purchased a nutritial balancer that takes much of the guesswork out of the equation.