I don't think I would supplement with fish meal (in the coop or run) as predator animals have a very keen sense of smell the the tiniest trace of fish would lure them to the coop.
I am going to supplement my chicken food, whatever I choose to feed, with small amounts of kelp meal and a small amount of olive leaf powder, peiodically. It is a great supplement and provides them with trace minerals and immune resistance.
I am going to supplement my chicken food, whatever I choose to feed, with small amounts of kelp meal and a small amount of olive leaf powder, peiodically. It is a great supplement and provides them with trace minerals and immune resistance.