J. Anim Sci.
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J. Anim Sci. 1978. 46:238-248.
© 1978 American Society of Animal Science
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Comparative Value of Ensiled Cattle Waste for Lambs and Growing-Finishing Cattle1

H. W. Harpster, T. A. Long and L. L. Wilson2 ,3,

The Pennsylvania State University, University Park 16802

Abstract

Rations containing ensiled cattle waste (ECW) were compared to corn silage (CS) rations in sheep metabolism and steer growth trials. ECW contained approximately 60% cattle excreta and 40% chopped hay on a fresh weight basis. Metabolism trial rations (four wethers/ treatment) were a CS, high moisture corn (HMC), soybean meal (SBM) control; 100% CS; CS plus SBM (CS/SBM);and ECW plus 0, 40 or 50% HMC. Nitrogen retention and digestibility of dry matter, organic matter, ether extract, NFE and energy were lower (P<.05) for 100% ECW. Addition of HMC to ECW increased (P<.05) means for these parameters, although the values were generally less than those observed for the control and CS/SBM rations. Four rations were compared in a three-phase, 183-day growing-finishing trial with steers (avg wt 258 kg). Treatments were a CS, HMC, SBM control; 75% ECW, 25% HMC; 50% ECW, 50% HMC; and 40% ECW, 60% HMC. All rations were readily consumed during all periods. Overall feed efficiency favored the control-fed steers. Average daily gains were highest (P<.05) for steers fed the control diet, but were not different from those receiving 40% ECW, 60% HMC. Gains and quality grade were less (P<.05) for steers receiving the high level of ECW.

Footnotes

1 Journal Series of the Pennsylvania Agricultural Experiment Station, Paper No. 5039.

2 The authors express their appreciation to D. A. Nichols, W. L. Palmer and D. L. Walker, Department of Animal Science, for their technical assistance.

3 This research was supported in part by funds from the Fair Fund administered by the Pennsylvania Department of Agriculture.






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Copyright © 1978 by the American Society of Animal Science.