Hey, was just reading some facts on Big Cat Sanctuary the other day. And honestly didn't know that it was against regulations to breed any white cats (lion or tiger), though I can completely understand why given the amount of health problems white tigers are prone to.
But that did leave me wondering about something. Would it still be against regulation if a white cat is born by pure chance or by accident?
So say a collection is just breeding normal coloured cats for conservation, but one of the offspring turns out to be white. Would they still be in trouble for having a white cat born?
No respectable zoo in this day and age would "breed" a white tiger, accidentally or otherwise. Why?
Because every white tiger is a Bengal/Amur hybrid.
All white tigers go back to a single forefather, Mohan. Captured as not quite a yearling cub (His mother and three siblings were
shot), he was bred to a typically colored tigress for years until his owner got so frustrated by the lack of white cubs that he resorted to breeding him to one of his
daughters.
Mohan's offspring were sold to circuses and zoos all over the world, with his white colored children/grandchildren being
particularly in-demand. Amur (AKA:"Siberian") blood was added into the US Bengal tiger genepool sometime in either the 1960's or '70's. Accounts vary as to
why this was done, but it was
definitely done, and the end result was Amur DNA eventually making it's way into
every Bengal tiger breeding program outside of
India.
Ergo, if you see a "Bengal" tiger exhibited and it's not in India, it's really a Bengal/Amur hybrid.
Since zoos nowadays pride themselves on supporting conservation programs, they breed animals with that aim in mind. And only certain tiger subspecies are bred in zoos, what subspecies your local zoo has mostly depends on where you live. Since you're from the UK, your local zoo is probably a member of the EAZA.
So you're liable to find either Sumatran or Amur tigers there.
As for white lions, the situation behind them is a bit more complicated. Mostly owing to their history.