ChickenCanoe has some interesting info on flock nutrition as the main reason that eggs fully develop but fail to hatch. He adds sea kelp and all sorts of stuff to his feed. I recently bought a bag of feather fixer for the honas, just to see if I could tell a difference.
Maybe try some additives (like what I'm not sure) just in your tolbunts, so it's not too expensive. After a few months you could try again.
Maybe try some additives (like what I'm not sure) just in your tolbunts, so it's not too expensive. After a few months you could try again.
