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


     

J. Anim Sci. 1979. 49:177-182.
© 1979 American Society of Animal Science
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 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 Google Scholar
Google Scholar
Right arrow Articles by Crickenberger, R. G.
Right arrow Articles by Gideon, L. A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Crickenberger, R. G.
Right arrow Articles by Gideon, L. A.

Effect of Protein Level in Corn-Corn Silage Diets on Abomasal Nitrogen Passage and Utilization by Steers1

R. G. Crickenberger2, W. G. Bergen3, D. G. Fox4 and L. A. Gideon5

Michigan State University, East Lansing 48824

Abstract

Eight steers were used in two 4 x 4 Latin square designed experiments to measure non-ammonia nitrogen (NAN) passage to the abomasum and nitrogen utilization when fed corn silage (CS) or 60% corn-40% corn silage (G) diets (DM basis). All diets were supplemented with soybean meal. Corn silage diets contained 11.25 (CS-11CP) and 12.82 (CS-13CP) % crude protein, and the 60% corn-40% corn silage diets contained 12.85 (G-13CP) and 16.35 (G-16CP) crude protein, respectively. Daily DM intake (% of body weight), daily abomasal N passage (g), daily abomasal NAN passage (g), N passage as percentage of N intake, and NAN passage as percentage of N intake were: 2.1, 63.8, 49.8, 79.2, 70.6; 2.3, 68.5, 53.1, 66.7, 50.9; 2.4, 94.1, 78.6, 88.4, 77.5, 2.6, 98.4, 83.0, 67.8, 57.5, respectively, for diets CS-11CP, CS-13CP, G-13CP, G-16CP. Diets that had lower rumen NH3 -N and plasma urea-N levels had a higher net recovery of dietary N in the abomasal digesta flow. The results suggest that the extra protein in G-16CP was not utilized efficiently by the steers.

Footnotes

1 Michigan Agricultural Experiment Station Journal Article No. 8560.

2 Beef Cattle Research Center, Dept. of Anim. Husbandry. Present address: Dept. of Anim. Sci., North Carolina State Univ., Raleigh.

3 Ruminant Nutrition Laboratory, Dept. of Anim. Husbandry.

4 Beef Cattle Research Center, Dept. of Anim. Husbandry. Present address: Dept. of Anim. Sci., Cornell Univ., Ithaca NY.

5 Department of Large Animal Medicine and Surgery, College of Veterinary Medicine; now in private practice.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1979 by the American Society of Animal Science.