A very compact (and limited) manual but I guess for small quantities it will do. Just the remarks on temperature are to broad. Breed them between 24-29 degrees celcius and that will work well. Much colder and the cyclus takes very long, much warmer and the mealworms get "overheated".
In regard of feeding them I have the following experience. I fed mealworms to my Birds (Irevalidated wild birds and bred birds) every day and mostly ad lib (means as much as they wanted/needed). Mostly about 2-3 kg per week depending of th enumber of birds that neede them. Many species used only mealworms to raise their young. You can only do that when your mealworms have been given a proper diet.
Your meallarvae are just as good as you feed them. For your animals you want to feed them to they are no more than an attractive package of high quality food.
The diet has to consist of a proteinrich food (e.g. meal/powder form food for laying chickens) and they need to begiven a good amount of supplement calcium (I used a product that is used for dogs and cats which also included other minerals and some yeast, essential additions to another wise insufficient diet). I fmpney is no issue you can use Carnicon but still add some calciumpowder. I sprenkled the mealworms very generously with that powder once every week. On top of the mealworms crawling in their food I placed some small leaves of lettuce (dry!!!) or small chunks of apple evry day. Remove any leftovers. Tkae care for moisture otherwise your larvae will die from e.g. yeasts. You will quickly smell it when you keep the larvae to moist and they start dyiing. Do not keep them in the fridge unless you give them 48 hours feeding-time before you feed them to animals.
As mealworms by themselves have a phospor-calcium content thats not sufficient for birds or other animals when fed in large quantities be wary of the necessity to supplement a calium product to the larvae. If that is not supplied your young animals will develop limb-deformaties when fed meal-larvae in large quantities.
So, the manual is probably ok but before feeding the larvae feed them!
