Well I am new to the forums, and realize this may be a little late but I can tell you all that these beetles are harmless. I have been raising mealworms for years now. Not for my chickens, but for my bearded dragon and other reptile pets. And although these may look like mealworm beetles they are not. The are a smaller beetle known commonly as a cleaner beetle. They lay thier eggs inside grains in fields before they are harvested which is why you find them hatching in your feed. They eat poop from other animals, among other things, which is why they are called cleaner beetles. The are perfectly harmless to feed to any animal that eats insects.
And as far as the feed being old, or anything like that, its not. The beetles hatching so soon after you bought it just means the egg cycle was already farther along when the grains and such were harvested.
hope this helps
And as far as the feed being old, or anything like that, its not. The beetles hatching so soon after you bought it just means the egg cycle was already farther along when the grains and such were harvested.
hope this helps