Gearld Fry and Ridge Shinn have spoken a great deal about the correlation between high butterfat and high intramuscular fat in cows. Does anyone have any information on the average butterfat content of various beef breeds? I've read that Devons have above 4% butterfat, but I'd be interested to find out about other breeds such as Murray Grey, Lowline Angus, Aberdeen Angus, etc.