What are F1 cattle?

Answer 1

Crossbred cattle. F1's are those that have parents each comprising of a different breed. For instance, a Hereford bull mated to an Angus cow will give an F1 black baldy calf. The result of this breeding creates offspring with heterosis, a term which means that the offspring exhibits genetic traits that are superior to the traits in either its sire or dam.

Answer 2

Second-generation/fallile cattle after a cross is made between two F1 cattle. For instance, crossing Angus over Hereford gives you an F1 calf. That calf grows into a cow and is crossed to an F1 bull (Angus-Hereford cross), and the two animals create an F2 calf.