Growing up country, I dug my own fishing worms, and baited my hook with them, so I don't really have an aversion. Mealworms are not actually a worm, but a larvae. They're not slimy, but they do wiggle some in your hands. I use a sorting pan, actually it's a gold mining pan, to separate the mealworms from the adult mealbugs, and pupae. The pupae, and mealbugs are needed to keep things going.
While I can feed them live, I can also put the mealworms in a ziplock bag, then into the freezer. They can be kept in the freezer, but when you want to reclaim the freezer space, I take them out of the freezer, and bake them on low heat for a little bit. When they have cooled down, they are returned to the ziplock bag(s). At that point they are freeze dried, and can be stored on a shelf, for future use. So far, it's much more cost effective to raise them, than to buy them. I had not thought of giving live ones to the chickens, until I went to the mealworm seminar.