Twenty good-quality Hereford yearling steers were used in this test.
They were purchased as steer calves in the fall of 1953 from the Joyce
Ranch near Carlsbad, N.M. During the summer of 1953 the steers were
used in pasture management experiments. The current test was initiated
November 10, 1954, and continued to April 6, 1955. To minimize
differences due to pastures, the steers were moved monthly from pasture
to pasture.