In the USA there have been many reports of large numbers of greyhounds being killed. In Arizona there was a case of 143 greyhounds being killed and dumped in a lemon grove after their racing days were over. This prompted members of the Arizona House of Representatives to propose a law to penalize people who kill racing dogs and to more strictly regulate dog tracks.
在美國，大量殺賽狗的事件到處可聞，亞利桑那州曾經發生一百四十三隻賽狗失去利用價值後，被射殺丟於檸檬樹下，下議院議員也提出懲罰屠殺賽狗者與對賽狗場進行更嚴格管理的議案。