We help busy dog owners and breeders get their dogs fit, safely and effectively! Whether you have a baby puppy or an aged senior dog, we have a safe, effective, science-based fitness programs for you!


Want to know more about Fit For Life? Check out this free webinar by Chris and Gayle to learn more about the programs, how to evaluate your dog’s fitness, and which foundational exercise is great to start with! We also cover our Puppy Exercise Guidelines and more about growth plates in young dogs. (Webinar previously recorded – October 2018)


Fit, active, developmentally sound puppies! After watching the recent trend to severely limit exercise for puppies, we hit the books. For several years, in fact! The results are these Fit For Life Puppy Exercise Guidelines. These guidelines arise from Chris’s long experience as a sports medicine veterinarian, researcher, and competitor and Gayle’s 40 years of experience raising and assisting others to raise puppies to be healthy, sound adults and seniors.

Purchase the guidelines poster or download your free copy (not printable) of the Fit For Life Puppy Exercise Guidelines!


Love, Actually: How a Tiny Peptide Drives Your Passion for Dogs

Love, Actually: How a Tiny Peptide Drives Your Passion for Dogs

Oxytocin. Most of us think of it as the hormone that helps bitches whelp and produce milk. And yes, it’s that, but so much more. A series of recent studies have revealed how oxytocin has a major effect on the brains of both people and dogs to strengthen the human-canine bond – that indescribable interspecies attachment that might just explain why you’re reading this.
read more
No Hot Dogs Please!

No Hot Dogs Please!

Not the kind you eat – you can make your own decisions about that! I’m talking literally: hot… dogs. Maybe you are thinking, “Oh gosh, I already know everything about this topic: Don’t leave your dog in the car, dogs have less efficient cooling mechanisms than people, blah, blah, blah.” Well, bear with me, because there are a couple of new studies that just might surprise you. In fact, they might just save your dog’s life.
read more


Avidog-Zink Ventures (AZV) uses technology to bring online canine fitness programs to dog lovers around the world.

In an AZV class, you will watch videos by our world-class dog trainers and breeders, read our easy-to-understand eBooks, learn at your (and your dog’s) own pace, and discuss questions with our trainers.

We know that you are busy, so our courses are designed with sound teaching and dog training principles to ensure you and your dog acquire new concepts quickly and effectively.


Gayle and Chris speak on a wide array of dog-related topics, from puppy rearing to canine fitness. Master presenters, Gayle and Chris entertain while they inform.


AZV is a joint venture between two of the Dog World’s most committed scientists and educators, Chris Zink DVM PhD DACVP DACVSMR CCRT CVSMT CVAWe, and Gayle Watkins PhD MS MBA. Chris and Gayle have joined forces to create online programs that make all dogs, from baby puppies to our beloved old dogs, healthier and fitter. They have a special interest in breeding dogs and young puppies because they know proper conditioning during these periods sets the stage for future generations of dogs.



Chris is one of the world’s top canine sports medicine and rehabilitation veterinarians and researchers. She obtained her DVM and PhD from the Ontario Veterinary College and is a professor at Johns Hopkins University School of Medicine where she teaches pathology and conducts AIDS research. She is also on the faculty of the Canine Rehabilitation Institute and gives seminars to veterinary professionals and dog owners around the world.

She has been named Woman Veterinarian of the Year and her books have received accolades from the Dog Writers Association of America. Through her efforts, the American College of Veterinary Sports Medicine and Rehabilitation was recently established as the newest specialty in veterinary medicine.

In addition to her veterinary expertise, Chris has put over 100 titles in Agility, Obedience, Conformation, Tracking, Hunt Tests, Barn Hunt, Nosework, Coursing, and Rally on dogs from the Sporting, Hound, Working, Terrier and Herding groups.



Gayle is the co-founder of Avidog International, where she works with dog breeders around the world to design breeding programs that produce healthy, stable, long-lived dogs of all types. She has bred golden retrievers for nearly 40 years and is one of the few dog breeders to have twice been selected by the American Kennel Club as “Breeder of the Year.”

Gayle’s professional life included 22 years of service as a US Army officer (retiring as a Colonel), teaching, speaking and publishing, and conducting research for the Department of the Army as well as many corporate and non-profit organizations. Her education includes biology, business and sociology degrees from Harvard, Stanford and Gettysburg College.

Gayle has bred and/or shown over 130 American and Canadian Conformation, Tracking, Obedience and Agility champions, plus Qualified-All Age and Master Hunter golden retrievers. These dogs include the only two-time National Agility Champion and the youngest Champion Tracker golden.


PO Box 66
Highlands, NC 28741