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Thesis (M.S.)—University of Nebraska—Lincoln, 1969. Department of Animal Science.


Copyright 1969, the author. Used by permission.


The general objective of this study was to examine the effects of several potentially beneficial factors on the utilization of high urea rations. Specific objectives were: (1) To evaluate dehydrated alfalfa (5%), molasses (5%) and pelleting on ration digestibility and nitrogen retention. (2) To evaluate all possible two-way interactions of the above factors on these same responses. (3) To determine the nitrogen loss in drying feces at 70 C. and in allowing feces exposure to room temperature over a 24-hour period.

Four digestion trials were conducted, using eight Hereford steers which were randomly assigned to two 4x4 quasi-Latin squares to determine the value of dehydrated alfalfa meal, molasses and pelleting and all possible combinations of these factors on utilization of urea-containing rations. Consequently, eight rations, one-half meal and one-half pelleted, were used. The urea (1%) was mixed in a supplement which contained dicalcium phosphate, limestone, salt, trace minerals, vitamins A and D, corn (for pelleting qualities), and the variables (5% dehydrated alfalfa or 5% molasses, or both). This supplement was fed with 57% ground corn and 25% GROUND CORN COBS.

Advisor: F. G. Owen