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The Influence of Type on Feedlot Performance and Killing Qualities of Hereford Steers

Texas Agricultural Experiment Station

Abstract

"Comprest" and "Regular" type Hereford steer calves from the same ranch have been compared as to rate and efficiency of gain under feedlot conditions. These calves were self-fed for a period of 112 days on a feed mixture calculated to promote normal growth. Following this, they received individually a feed mixture containing about 59 percent concentrates for 173 days.

The "Regular" type calves were taller at the shoulders, longer of body, greater in depth of chest, and greater in distance from chest floor to ground than were the "Comprest."

The percent of market weight composed of untrimmed hide, untrimmed head, and shanks was greater in the case of the "Comprest" type steers.

More total and daily feedlot gain was made by calves of the "Regular" type.

There was a slight, but nonsignificant, difference in efficiency of feed utilization in favor of the "Regular" type calves.

Of the percentages of wholesale cuts studied, only the shank was significantly different. The percentage of this cut from the "Regular" type calves was greater.

The estimated percentages of separable fat, lean, and bone were not significantly different in carcasses from the two types.

¹ Respectively, Assistant Animal Husbandman, El Paso Valley Experiment Station, Ysleta, Texas; Assistant Professor, Associate Professor, Professor of Animal Husbandry, The Agricultural and Mechanical College of Texas, College Station, Texas; Superintendent, El Paso Valley Experiment Station, Ysleta, Texas.