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...
A lactating cow (producing 20,000 lb of milk) will consume EACH year 5.7 ton of forage dry matter, 106 bushel of corn, 1400 lb of protein supplement, and 225 pounds of mineral/salt. If the cow stays in the herd for 3 lactations, multiply these last numbers by 3.