Purdue University Agricultural Experiment Station La fayette, India na
THE COMPARATIVE FEEDING VALUE OF LINSEED MEAL AND UREA MODIFICATIONS OF SUPPLEMENT A AND OF LOW MOISTURE AND HIGH MOISTURE SHELLED CORN FOR FATTENING BEEF CALVES 1,2,3
T. W. Perry, W. M. Beeson and Dale Cope
Cattle feeders have long recognized that the feeding of linseed oil meal as a protein supplement to fattening beef cattle resulted in an improved hair coat condition or tlbloom,t? More recently, Purdue research has indicated some increase in rate of gain and improvement in carcass quality of steers when the protein of Purdue Supplement A was derived from a combination of linseed meal and urea.
Three years research results at Purdue have shown that high moisture (32-34$ water) ensiled ground ear corn was from 10 to 15$ more efficient than regular cribbed corn on the same dry matter equivalent for fattening beef cattle.
The objectives of the trial reported in this paper were to obtain additional information on the subjects of linseed meal and urea and of high moisture corn for beef cattle as follows:
1.	To compare high moisture ensiled shelled corn with corn that has been stored in conventional cribs.
2. To compare soybean meal with linseed meal on a protein replacement basis.
3. To compare soybean meal with a combination of linseed meal and urea on protein replacement basis.
4.	To compare soybean meal with linseed meal on a protein replacement basis plus a died .ujftS .
Experimental Procedure
Eighty Hereford steer calves from Colorado, averaging 492 pounds, were divided into eight lots of 10 each on the basis of liveweight and outward appearance and were started on experiment on December 30, 1958. All lots are being fed a fattening ration consisting of the following:
The cattle are being hand fed a full feed of the respective corn and all lots are fed twice daily.
1' Acknowledgement is made”to the A.O. Smith Corporation, Milwaukee 1, Wisconsin, for furnishing the Harvestore for ensiling the high moisture corn.
2	This research was supported in part by a grant-in-aid from the National Flaxseed Processors Association, Washington, D.C.
3	The authors are grateful to Mr. Ricardo Avila for weekly moisture determinations
of the two types of corn.
MLmeo AS 250 April 2k, 1959 (Progress Report)