Well, for one thing, an F2 animal out of a Char-Angus x Char-Angus is definitely not a breed, but a crossbreed.
Unless your asking "What breed of cattle has the least amount of fat: Charolais, Angus or Charolais Angus cross?" I assume this is the closest to what your asking, as the question you posted above makes very little sense.
Charolais-Angus crossbreds are not a breed, but a composite. These cattle have the characteristics of both Charolais and Angus parents, and so wouldn't have the least amount of fat at finishing. Angus tend to mature early, and consequently put on more fat during finishing than either a Char-Angus cross or a Charolais. So, that leaves us with the final answer:
A Charolais is the breed of beef cattle that has the least amount of fat content.
The Angus is a breed of cattle
Angus and Red Angus.
Angus cattle are a Scottish breed of beef cattle that originated from Scotland.
The Angus breed.
Angus.
ANGUS of course!!
The disposition of the Angus breed varies but most are even tempered.
Ajax are not a breed but are Angus/Jersey cross.
Angus is merely a black breed of beef cattle..The beef from angus cattle has a unique flavor, somewhat different from other beef breeds..
Belgian Blue cattle.
"Red Angus"
I was once chased by a cow of this breed.