Hey,
One thing that will be necessary for the breeding trio, if such is the case that they are ready, is, they will have to be of appropriate size and age. With that said, I think you get the point. No blood should be bred prior to its third year of life. That is my opinion and the opinion of the greater majority of experienced blood breeders and keepers at large. Sexual maturity if you will, does not take place prior to the 3 year of life for females, and any attempts at breeding them younger than that could have disappointing results. Males can breed much younger and keepers have had good success rates breeding males just under 3 years of age (2-2 1/2 years old).
As for brumation (induced hibernation in captivity), the ideal scenerio for inducing breeding, is separation of the breeding pair or trio in this case. Males and females, should be placed in separate containers for an eight week period. However, there are conflicting arguments in this regard, as clutches have been produced successfully, where no brumation has taken place. I personally have a clutch right now about to hatch any day now, whose parents were not brumated at all, and have pairs where brumation has been implemented and where no viable egg's were produced. I think that the cooling period is an imperative part of the process, however, it doesn't always guarantee a successful outcome! The call is yours to make. It won't hurt to cool them, as it can only increase the likelihood, of a successful and viable clutch being produced, but not always necessary. There are some triggers that make for sperm production in males, and ova to be produced in females, where no brumation has taken place. Sometimes it is pure luck that the male is producing sperm right at the time the male is introduced to the female and that can go a long way toward a good year or not.
-Angel
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"Until we lose our self, there is no way of finding our self."
-Henry Miller.