1 73 calories per ounce or 28 g of sirloin steak lean and fat (1/8 rim of fat). 2  268 calories in a 4 oz or 114g sirloin steak (lean only). 3  402 calories in a 6 oz or 171g sirloin steak (lean only). 4  536 calories in an 8 oz or 227g sirloin steak (lean only).
Double muscling- A genetic trait in cattle where muscles are greatly enlarged rather than duplicate muscles. Double-muscled cattle...
Some breeds are also known as dual purpose breeds because they combine muscling for meat production with excellent maternal characteristics. For more information on breeds of beef cattle, visit the Oklahoma State Beef Breeds Directory at www.ansi.okstate.edu/BREEDS/cattle.Crossbreeding can help you to combine the best attributes of individual breeds into one package.or more information on breeds of beef cattle, visit the Oklahoma State Beef Breeds Directory at www.ansi.okstate.edu/BREEDS/cattle. Crossbreeding can help you to combine the best attributes of individual breeds into one package.