In the related matter, the meat of animals with four legs such as beef and pork was avoided long ago to keep off bad luck because those animals are suggestive of "going down on all fours" meaning "losing a sumo match," but those meats have been used now.
これに関連し、古くは「手をつく」＝「負ける」という連想から、縁起を担ぐためウシやブタなどの四足動物の肉を使うことは避けていたが、現在では使われている。