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


     

J. Anim Sci. 1977. 44:152-157.
© 1977 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 Smith, L. W.
Right arrow Articles by Lindahl, I. L.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Smith, L. W.
Right arrow Articles by Lindahl, I. L.

Alfalfa versus Poultry Excreta as Nitrogen Supplements for Lambs

L. W. Smith1 and I. L. Lindahl2

United States Department of Agriculture, Agricultural Reserach Service, Beltsville, MD 20705

Abstract

Dehydrated excreta from caged layers (DPE) was compared with alfalfa as a nitrogen supplement for lambs at both 8 and 12% dietary crude protein levels. All diets contained a calculated 65% TDN content, and the supplements contributed 36 to 40% (8% crude protein diets) or 60 to 65% (12% crude protein diets) of the total dietary nitrogen. Lambs digested dietary nutrients from the two sources of nitrogen equally well, except that ash was 43% less digestible in DPE supplemented diets. Lambs fed the 12% crude protein diets consumed 22% more feed (P<10), gained 74% faster (P<.05), and were 39% more efficient (P<.05) in converting gross digestible organic matter into gain than lambs fed the 8% crude protein diets. Lambs fed diets supplemented with DPE tended to consume more feed and convert digestible organic matter available for growth 32% more efficiently than lambs fed diets supplemented with alfalfa, but differences were not significant (P>.10). Cost of gain for lambs fed the 12% CP diet supplemented with DPE was 17% lower than for lambs fed the 12% CP diet supplemented with alfalfa.

Footnotes

1 Feed Energy Conservation Laboratory, Animal Physiology and Genetics Institute, Beltsville Agricultural Research Center, Beltsville, MD.

2 Ruminant Nutrition Laboratory, Nutrition Institute, Beltsville Agricultural Research Center, Beltsville, MD 20705.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1977 by the American Society of Animal Science.