I started making my own chicken feed this summer. Included in my formulation is whole oats, whole wheat, cracked corn, field peas, sesame seeds, fish meal, kelp meal, Redmond salt, active brewers yeast, limestone meal, NutriBalancer, and in the winter I'll include alfalfa meal (they're on pasture the rest of the year and forage for the majority of their nutrition). The problem is that after they've eaten all the grains, peas, and seeds, they're left with the "premix" of fish and kelp meals, salt, yeast, etc. I've been leaving it for a day or two figuring that if they become desperate enough they'll eat it, but they don't and then I give in and refill the feeders with new food. What can I do (apart from grinding everything together into a meal which is not doable) to get them to eat the premix?