Purdue University-Agricultural Experiment Station Lafayette, Indiana
Mimeo A.H. 224 April 25, 1958
LOW-MOISTURE VS0 HIGH-MOISTURE GROUND EAR CORN WITH LINSEED LEAL AND UREA MODIFICATIONS OF SUPPLEMENT A* W. M. Beeson, R. E. Honnold and T. W. Perry Department of Animal Husbandry
The results of two years research have shown that the storage of high-moisture ground ear corn (32$ water) in a glass-lined silo is an efficient method of preserving a product that could not be stored at that moisture in cribs (Purdue Mimeos A.H, 169 and 204). Furthermore, such ensiled corn was utilized from 10 to 15 percent more efficiently than corn picked at a later date—from the same field—and stored in cribs*
Research at Iowa (Burroughs et al., 1957 - Iowa A.H. Leaflet 222) showed that cattle receiving high-moisture corn (31$ moisture) made essentially the same daily gain on 10 percent less corn (same dry matter basis when compared with cattle fed low-moisture ground ear corn (14$ water).
Previous research at Purdue (A.H. Mimeo 201) has indicated that linseed meal and soybean meal have quite similar values as sources of protein in the Purdue Supplement A formula. Also, experimental results from the feeding of urea in fattening and growing rations have indicated that urea can supply up to 33$ of the protein requirement if the energy lost by substituting urea is added back as corn or some other high-energy feed.
The objectives of this experiment were to compare the feeding value of high-moisture ensiled ground ear corn with regularly cribbed corn and to compare linseed and soybean meal as sources of protein in Supplement A, with and without a replacement with 5$ urea, for fattening beef cattle.
Experimental Procedure
One hundred fifty Hereford heifer calves, which were raised in Oklahoma, were purchased at an average price of $23*25 per hundred weight and delivered at Lafayette, Indiana. Seventy-two of these calves, averaging approximately 533 pounds, were used for this experiment. The calves were divided equally, on the basis of weight, type and general thriftiness, into S lots of 9 heifers each.
The treatments were as follows:
Full Feed of High-Moisture Ground Ear Corn (Ensiled)
Lot I	2.0 pounds of Supplement A with soybean meal, 5.0 pounds hay and minerals.
Lot II	2.0 pounds of Supplement A with linseed meal, 5.0 pounds hay and minerals.
'''Acknowledgement is made to the A. 0. Smith Corporation, Milwaukee 1, Wisconsin, for furnishing the Harvestore for ensiling the high-moisture ground ear corn.