Re: young bees question
If you have sealed brood, transferring that is the easiest way to add young bees and add strength to a hive....but that does not answer your question!!!
If you move some frames of bees (without the queen), and place them in a hive body (w/top and bottom) or nuc several feet away (10-20 feet should be more than enough), the foragers will return to the old hive and you will be left with younger "house" bees.
Then, the next morning, you can shake them off the frames and return the frames to the original hive , or just transplant the frames and let them raise the brood...This will assure that you have mostly pre-forager aged bees in your transplant.
How many frames you use depends on how many bees you need.
I am curious what your goal is.
4 seasons 19 Hives-Camp Branch Bee Ranch. Est 2009
"I am a nobody; nobody is perfect, and therefore I am perfect."