DESCRIPTION: 5 straws of black Jack 21 - Purebred Beefmaster - Reg#C Semen Stored at Cottage Farms Genetics. Registered Beefmaster bull ready to go to work. "LA COSTA". She is bred to MBR Playboy. BEEFMASTER. Más como esto. Guardar. Beefmaster Bull Semen Blackjack Guardar. de Criadores de BLACK JACK. BULL. C Jacksboro, Texas 󱝍. She has given us 2 bull calves but the 1 heifer she has given us was a tremendous Black Jack 21 daughter—Queenie. Beefmaster Bull Semen Blackjack Guardar. "LA COSTA". en el Ganado Beefmaster”. a herd of cattle grazing on grass in a field. BEEFMASTER. 15 months old. We are excited. Más como esto. Guardar. For more information, contact Aaron. Asoc. a brown and white cow standing on top of a lush green field. Mex. Great genetics. . Very docile.