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...
Freemartinism is recognized as one of the most severe forms of sexual abnormality among cattle. This condition causes infertility in the female cattle born twin to a male. When a heifer twin shares the uterus with a bull fetus, they also share the placental membranes connecting the fetuses with the dam.stimates of the percentage of natural beef cattle births that produce twins vary. One estimate (Gilmore) puts the percentage at about .5% or 1 in every 200 births. Approximately one-half of the sets of twins should contain both a bull and a heifer calf.