§ 53.202 - Classes of slaughter and feeder cattle.

The classes of slaughter and feeder cattle are steers, bullocks, bulls, heifers, and cows. Definitions of the respective classes are as follows:

(a) Steer. A steer is a male bovine castrated when young and which has not begun to develop the secondary physical characteristics of a bull.

(b) Bullock. A bullock is a young (under approximately 24 months of age) male bovine (castrated or uncastrated) that has developed or begun to develop the secondary physical characteristics of a bull.

(c) Bull. A bull is a mature (approximately 24 months of age or older) uncastrated, male bovine. However, for the purpose of these standards, any mature, castrated, male bovine which has developed or begun to develop the secondary physical characteristics of an uncastrated male also will be considered a bull.

(d) Cow. A cow is a female bovine that has developed through reproduction or with age, the relatively prominent hips, large middle, and other physical characteristics typical of mature females.

(e) Heifer. A heifer is an immature female bovine that has not developed the physical characteristics typical of cows.