No abstract

Two pairs of identical twin heifer calves were grazed together on bluestem pasture from 1961 until 1968. During the two winters, 1961-63 each ones daily supplement was 1 pound of ground sorghum grain, 1 pound of soybean oil meal, 20,000 I.U. of Vitamin A and 0.05 lb. of dicalcium phosphate. Salt was always available. The third winter {l963-64}, as bred two year olds, one of each pair was randomly selected to continue receiving the winter supplement, the other to receive only salt and bluestem pasture. They were pastured together, and those fed were separated each morning during the winter to receive the supplement.

No abstract

This test compared urea supplement (hand-fed), urea supplement (self-fed), and soybean meal (SBM) supplement (hand-fed) with cows on winter bluestem pasture. The supplements were formulated to supply the same amount of protein and total digestible nutrients. Salt was fed free choice with the handfed supplement.