can all feeder insects eat chicken mash?

  I breed mealworms superworms and crickets can I just buy a bag of egg laying chicken mash for all of them to eat as a dry food. Its cheaper then oatmeal or dog food and it has good nutrition for all of them. I have a leopard gecko and a bearded dragon.
I have fed my crickets and meal worm chicken mash before, but i buy the stuff without meat bi products. only grains. I have since switched to buying bulk fish food flakes. i find they have more nutrients in them.
Mealworms and Superworms can eat it for sure. However, I'm not sure about crickets.