It didn't "get by" him. Bob didn't become interested in animal rights until 1979, and this episode is from 1972.
As a matter of fact, the very first item up for bids on the very first show back in 1972 was a fur coat.
And this wasn't the only time live animals were offered as prizes. There was a 1974 show where an actual real live pony was the item up for bids.
I guess my point was, the episode that's linked has a "Game Show Network" bug in the lower left-hand corner, and while this episode didn't have a fur coat in it, it did offer an animal, which I thought Bob was opposed to ... even if that didn't happen until years after this episode originally aired.
I thought the idea behind Barker excluding certain episodes from rebroadcast was that the shows had to have nothing to do with animals whatsoever ... meaning, fur coats, leather and live animals as prizes, to make it appear as though he had always been an animal rights supporter (even though that wasn't always the case) and that newer-day fans would become confused that he at one time had no problem offering fur coats, luxury cars with leather interiors, etc., as prizes.
I sure hope that someday we can enjoy these episodes again and that the ban will be allowed to expire or relaxed. (Same with other episodes that are supposedly on Barker's "ban list.") When or if that happens is up for speculation.
Brian