Depends what you mean by a few scoops. How big is the scoop? How many chickens? Generally, I understand "extras" should not exceed 10% of their diet, or (if I recall correctly) about 1 Tbsp per chicken per day. Don't quote me though. @U_Stormcrow is one of our feed experts. And I don't eat shrimp so I can't speak to that at all. (I just tagged Storm so let's see what he says!)they get a few scoops of black fly larvae daily & shrimp shells whenever we shrimp for dinner lol