Rations containing either soybean meal, raw full-fat soybeans, or processed
soybeans were compared using 36 high-producing dairy cows in early lactation. The
processed soybeans were heated in a California Pellet Milt Jet-Sploder for
sufficient time (about 1 min) to produce beans with exit temperature of 340°F. The
raw soybeans and heated soybeans were rolled before being• mixed into the
concentrate mixture. Alfalfa hay and concentrate were consumed ad libitum in a
ratio of 35 % hay and 65 % concentrate.
Milk production and percent protein in milk were significantly greater when
cows were fed soybean meal or Jet-Sploded beans than when fed raw soybeans.
Percent milkfat and total milk solids were not affected by treatment.
