I bought some scratch that wasn't what I thought it was It's Purina Organic Scratch with corn, wheat and barley and has 7% protein. What can I add to increase the protein? I don't know how much of what to add to make this better. I have those little alfalfa cubes. What else can I add? Canned/frozen peas, BOSS, scrambled egg, tuna??? And if possible can you give me an idea of how much to add per lb of scratch. I have been trying to figure out the whole protein percentages but I just can't get the hang of it.