J. Anim Sci.
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J. Anim Sci. 1958. 17:298-303.
© 1958 American Society of Animal Science
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The Effect of Certain Inoculations on the Utilization of Urea or Biuret by Growing Lambs1

R. C. Ewan2, 3,, E. E. Hatfield and U. S. Garrigus

Illinois Agricultural Experiment Station4

Abstract

A randomized complete block experiment with six replicates was conducted using 54 lambs. The study compared the effect of three nitrogen sources (1) basal, (2) basal plus urea, and (3) the basal plus biuret, and three inoculation treatments (1) none, (2) rumen contents from sheep maintained on a similar ration containing urea and (3) rumen contents from sheep maintained on a ration containing biuret, in all combinations on nitrogen balance, percentage of nitrogen intake retained, nitrogen digestion, organic matter digestion, and dry matter digestion.

The data seem to justify the following conclusions: 1. All measures were improved (P<0.01) by the addition of nitrogen to the ration. 2. The apparent digestion coefficients for organic matter and dry matter were depressed when the basal plus biuret was compared to the basal plus urea. This difference was not significant, however. 3. Nitrogen balances were higher (P<0.01) when the basal plus urea was compared to the basal plus biuret. 4. Nitrogen balance was higher (P<0.05) when lambs were fed the biuret supplemented ration and received the inoculation treatment with rumen contents from sheep on a ration containing biuret when compared to either of the other inoculation treatments. No other effects were observed from inoculation treatments.

Footnotes

1 This work was financed in part by a grant-in-aid from the Grace Chemical Company, Memphis, Tennessee. Aid was also received from Moorman Manufacturing Company, Quincy, Illinois, which supplied the mineral mixture, courtesy of Arthur Nesbit.

2 This research completed in partial fulfillment of the requirements for M.S. Degree in Animal Science, University of Illinois, Urbana, June, 1957.

3 Presently on active duty with the V. S. Air Force.

4 Department of Animal Science, University of Illinois, Urbana.






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Copyright © 1958 by the American Society of Animal Science.