What is AV open at dog shows?

"AV open" is not a standard term used in dog shows. There is no common abbreviation or term that combines "AV" with "open" in the context of dog show events.

It's possible that you might be referring to something else, or the term is specific to a particular dog show club or region.

Could you please provide more context or details about what you're looking for? For example:

* What type of dog show are you referring to? (e.g., conformation, obedience, agility)

* What does the "AV" stand for in this context?

* What is the specific event or competition you're interested in?

With more information, I can help you understand what "AV open" might mean in your specific context.