J. Anim Sci.
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J. Anim Sci. 1976. 43:1072-1076.
© 1976 American Society of Animal Science
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Influence of Acid-Resistant Hemicelluloses on Urea Nitrogen Utilization by Lambs1

G. A. McLaren2, J. E. Williams2, G. C. Fahey, Jr.2, T. R. Smith2, J. E. Smith3 and H. A. Woolf4

West Virginia University, Morgantown 26506

Abstract

This work was conducted to determine the influence of corn cob acid-resistant hemicellulose (ARH) on in vitro rumen microbial protein synthesis and on the utilization of urea nitrogen (N) by lambs. Supplementation of the basal medium with .02% corn cob ARH increased (P<.05) rumen microbial protein synthesis. Data obtained with lambs during three digestion and N metabolism trials indicated that incorporation of .06% corn cob ARH into all urea-supplemented, semipurified rations increased (P<.05) both the percentage of absorbed N retained and cellulose digestion.

Footnotes

1 Published with the approval of the Director of the West Virginia Agricultural Experiment Station as Scientific Paper No. 1411.

2 Division of Animal and Veterinary Sciences.

3 Present address: Department of Medicine, College of Physicians and Surgeons, Columbia University, New York.

4 Present address: Department of Dairy Science, Rutgers University, New Brunswick, NJ.






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Copyright © 1976 by the American Society of Animal Science.