Is it possible to export a figure from poser5 that has dynamic hair applied to it so that the hair would retain its texture and how it looks in bryce? Short Answer: No. Longer answer: Bryce doesn't support the type of geometry or texturing methods used for P5 hair, so it cannot effectively display or use them in the manner you describe. Theres an even more in depth answer, but I'm sleepy so I'll let someone else provide it :)

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)