Smith, E.F.; Cox, R.F.; Fansher, S.B.
(Kansas Agricultural Experiment Station, 1952)
Thirty head of good quality, about 750-pound, Hereford yearling
steers were used in the test which was started December 7, 1951.
The steers were purchased in the spring of 1951 and had been grazed
on bluestem pasture ...