J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Coomer, J. C.
Right arrow Articles by Williams, C. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Coomer, J. C.
Right arrow Articles by Williams, C. C.

Journal of Animal Science, Vol 71, Issue 11 3078-3086, Copyright © 1993 by American Society of Animal Science

JOURNAL ARTICLE

Effects of supplemental protein source on ruminal fermentation, protein degradation, and amino acid absorption in steers and on growth and feed efficiency in steers and heifers

J. C. Coomer, H. E. Amos, M. A. Froetschel, K. K. Ragland and C. C. Williams
Department of Animal and Dairy Science, University of Georgia, Athens 30602.

In Exp. 1, four Holstein steers with cannulas in the rumen, abomasum and terminal ileum were used to determine the effects of 1) soybean meal (SBM), 2) heated SBM (HSBM), 3) corn gluten meal (CGM), or 4) a combination of HSBM and CGM (COMBO) as protein supplements on ruminal and total tract nutrient digestibilities and intestinal amino acid flows and absorption. In Exp. 2, 24 Holstein steers and 16 Holstein heifers were used in a 56-d growth trial to study the effects of these protein supplements on growth, feed efficiency, and apparent digestibility of DM, OM, CP, and fiber components. Increasing undegradable intake protein (UIP) in diets with HSBM, CGM, and COMBO decreased ruminal fluid ammonia N concentrations (P < .05) and ruminal DM and OM digestion (P < .05) and increased flow to the abomasum and absorption from the small intestine of CP (P < .05), total amino acids (P < .05), and total essential amino acids (P < .01). Increasing UIP increased bacterial and nonbacterial CP and amino acids flowing to the abomasum (P < .05). However, UIP supplementation did not affect DMI, ADG, or feed efficiency in steers or heifers (P < .05).


This article has been cited by other articles:


Home page
 Professional Animal ScientistHome page
M. J. Hersom, M. Vazquez-Anon, K. P. Ladyman, M. S. Kerley, and J. D. Arthington
Effect of Methionine Source and Level on Performance of Growing Beef Calves Consuming Forage-Based Diets
Professional Animal Scientist, August 1, 2009; 25(4): 465 - 474.
[Abstract] [PDF]

Home page
 J ANIM SCIHome page
J. C. Marini, D. G. Fox, and M. R. Murphy
Nitrogen transactions along the gastrointestinal tract of cattle: A meta-analytical approach
J Anim Sci, March 1, 2008; 86(3): 660 - 679.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
S. C. Kim, A. T. Adesogan, and J. D. Arthington
Optimizing nitrogen utilization in growing steers fed forage diets supplemented with dried citrus pulp
J Anim Sci, October 1, 2007; 85(10): 2548 - 2555.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
L. R. Legleiter, A. M. Mueller, and M. S. Kerley
Level of supplemental protein does not influence the ruminally undegradable protein value
J Anim Sci, April 1, 2005; 83(4): 863 - 870.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1993 by the American Society of Animal Science.