Like chiropractic, chirovetpractic began over 90 years ago. Unlike chiropractic, chirovetpractic diagnostic, and treatment techniques are totally different because of the differences in the skeletal biomechanics of the biped, and the quadruped.
I have only worked on a few llamas. Their symptoms collectively were a roached back (humped up in the lumbar reagon), cow hocked and rear leg lameness. I would have to work on 50 to 100 to be positive about other symptoms. However, my SWAG (Scientific Wild Ass Guess) would be that their symptoms would be similar to those of the horse.