Ok, live meal worms are easy to raise and way more nutritious than dry, plus way more affordable.
Meal worms go through 3 life stages ( technically 4 including egg). The meal worm is a larva that hatched from an egg, at first they are microscopic. After the larva grow for quite some time, maybe a few months depending on temps... during that time they may reach the size you are able to feed out. Smaller worms for smaller chicks. Once they have full grown they will pupate into a pupa. Looks like a little alien that can only wiggle around. This stage does not eat or drink. Within about two weeks the Pupa will turn into Darkling Beetles, which is the adult stage. They will be white at first and darken within a few days. Those will begin laying the microscopic eggs and it starts all over again. The beetles do have wings but don't fly away. Some people try to separate out the life stages but it ended up being to much work when all can live happily together as long as their needs are met.
My flock Go crazy for the meal worms especially! But they also enjoy the pupa and the beetles. So I feed out all life stages, depending on what I have at the time. All my meal worms started to pupate at the same time even though I ordered different sizes...
Each stage has a slightly different nutritional make up, but I believe all stages are nutritionally more sound than dried. Still to be used as a treat though.
Knowing how many you can feed out regularly and keep a colony going takes some trial end error, at least for me. I don't have the exacts, but everything is dependent on temperature. Colder equals slower, warmer equals faster. Plus it depends on how many mealworms you start out with.
Really, there are a lot of helpful people here with way more experience than me, have you checked out this thread?
https://www.backyardchickens.com/t/492636/mealworm-farming/8640#post_17755065