Actually, Giaach "qualified professionals" offer up and practice advice that is quite harmful to the animals in their care.
I don't look down on or shoot down anybody just because they have a new idea - but in cases like this where serious physical harm could come to one of my animals I am skeptical for the sake of my animal!
Zoologist does not mean chiropractor. Animal chiropractic care is often a completely seperate course and area of study from any other type of care.
I would not allow a veterinarian to attempt to train one of my animals because they are not behaviorists or trainers, they may be medical professionals and qualified (for the most part) to treat and care for an injured or sick animal but that does not mean they are qualified to do anything else.
A professional in one area does not mean a professional in all areas that could be related to their studies. When it comes to potential physical harm I look to training, qualifications, studies, PROOF.. not just someone who has and has handled lots of critters.
JMHO
Edit: Sorry if anything was repeated from the post above, I took a long time to type it out