Lesser known cuts for beef geeks Chuck cuts guide The Denver and Chuck Eye come from the Chuck primal. Most breeds of cattle, such as Black Angus, marble primarily in the Rib and Loin primals. Wagyu originated as draft animals and were bred to put on growth in the front of their body (Chuck - shoulder and neck), and Wagyu display exceptional marbling throughout most primals. Denver (aka Zabuton, McKinney) - One of my personal favorites. Known in Japan as Zabuton for its resemblance to a m...