I would like to know more about the specifics of your recipe- as well as what you are feeding (type/ quantity of birds. Very curious).
I would also only point out that feeding crushed egg shells from your birds as their sole source of calcium is a little tricky (if that is what you are doing) -...
I am allergic to both corn and soy, and have an anaphylactic reaction to both.
I don’t have a reaction to store bought chicken or eggs, but I feed my ducks homegrown soy/ corn free layer.
(and our ducks lay enough that we haven’t bought eggs from the store in years- our youngest kiddo is...