World’s tallest kitty still growing
Does this breed qualify as a domestic cat for record purposes?
From your linked wiki article:
sounds like a domestic cat to me 
YMMV (your meowing may vary)
TICA has registered them, so that makes it a domestic breed. There’s no genuine biological standard involved.
Hell no. Domesticated cats and Siberian Tigers have 19 chromosome pairs. Theoretically, they can be cross bred. Siberian tigers grow up to 320 kg. Bribe some dude on the cat breed committee and you’re in like flint.
On the other hand, hell yes. Even though that damn cat is obviously a half wild cat hybrid, maybe my half Siberian tiger domestic cat will get my fucking neighbor’s dog to shut the fuck up.
Screw the half tiger part. There are more pet tigers in Texas alone than there are wild tigers in India. There are over 10,000 pet tigers in the U.S. and they are easy to buy even legally in many jurisdictions and they probably cost less than the designer pussy in question. I have never met a truly domesticated cat and the pure evil the one in the video exudes is going to give me nightmares for weeks. Tigers might as well be considered domesticated as well unless the definition of domesticated is “probably won’t kill you with one swipe of its claws even though it really, really wants to”. It is a made-up definition. They might as well give it the record of being the largest cat around that you could probably get into a death match against and still emerge victorious dancing to Eye of the Tiger.
Actually, in formal terms, domestication is defined by artificial selection for characteristics to make a species more suitable for human purposes, so house cats (no matter how ornery the individual is) qualify and tigers do not, as the former have been selectively bred by humans for thousands of generations, whereas the latter have hardly been bred at all in captivity. A tiger which has been raised by humans since birth and is more docile than average would be considered tame, not domesticated. It is not clear to me whether the offspring of a domesticated species and a non-domesticated species would be classified as domestic or not, as it is in a gray area, genetically and culturally speaking.
I have no idea whether it should technically count or not; I just have to say that’s one of the most gorgeous kitties I’ve ever seen, and I want one! 
Can they? The fact that they have the same number of chromosome pairs doesn’t mean they can cross-breed.
As **horsetech **says, domestics are characterized by many, many generations of captive breeding, the result of which is a distinctive, stable form differing from any truly wild species. (Feral animals, or escaped domestics, are not truly wild species.) So domestic cats are just that, cats that have been captive bred for millennia and that now differ from the wild ancestors from which they were derived.
Savannah Cats have started along this path, and I suppose it could be argued that some individuals today actually qualify as domestics. But (aside from any debate about “how long does it take to commit history?”) as long as actual wild cats (wild as in, identical to wild individuals of the same species, even if produced in captivity) are still being used in the breeding program of even some breeders, I’d find it hard to call this a domestic breed.
For regulatory purposes, Florida regulates wildlife according to its ancestry, based upon the “wildest” if a hybrid. So an F1 Savannah, produced by crossing a Serval (wild) Cat with a domestic cat is considered for regulatory purposes to be the same as a Serval. Similarly, a wolf / dog cross is regulated as if it is a wolf.