This book Diagnostic Veterinary Ultrasonography: Principles and Practice is intended for the beginner-ultrasonographers in the veterinary and animal Sciences, particularly for those veterinarians who are involved in providing services to large and pet animals. In India, ultrasonography of animals is hampered by PC PNDT act, a law that prohibit sex diagnosis in human. Under this act, there is strict regulation for the movement of ultrasound machine at farmers doorstep. This regulation also covers ultrasound imaging by veterinarians in India.