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