**As eggs**. Like sea turtles you study the biology of the creatures including environmental factors that may effecting hatching. You also study means of placing freshly fertilized eggs in a torpor like state so they can be kept in storage until needed.

You also use **selective breeding** so that the only eggs being produced come from dragons demonstrating the characteristics you want. So in this case only the approachable/ reasonable/friendly dragons get to produce eggs. Some eggs you raise for more dragons and some you put in storage.

As a by-product any eggs that pass their use by date? - giant omelettes.