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


     

J. Anim Sci. 1979. 48:464-467.
© 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 Durham, R. R.
Right arrow Articles by Hinman, D. D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Durham, R. R.
Right arrow Articles by Hinman, D. D.

Digestibility and Utilization of Bluegrass Straw Harvested on Three Different Dates1

Robert R. Durham2 and Dan D. Hinman3

University of Idaho,4, Moscow 83843

Abstract

Digestion and feeding trials were conducted using Kentucky bluegrass straw-based diets to study the effects of time between grass seed combine-harvesting and straw collection upon feeding quality. Three straw treatments were baled at 1, 10 and 28 days after seed harvest with the latter two straws receiving precipitation before baling.

Twelve steers, four on each ration, were fed concentrate and roughage mixes at 2 and 7% of their metabolic weight per day, respectively, in a 7-day digestion trial. There were no ration differences (P>.05) in the digestibility of dry matter, crude protein, gross energy, acid detergent fiber, cellulose or acid detergent lignin.

Forty-eight steers were used in a 130-day feeding trial to study roughage intake and animal performance. The concentrate mix was fed at 2% of the metabolic weight and was adjusted after each biweekly weighing. The roughage mix was offered for 2 hr twice daily. Higher roughage intake (P<.05), average daily gain (P<.05) and improved feed conversion (P<.01) were found for steers fed straw baled 1 day after seed harvest than steers fed straw baled at 10 or 28 days after seed harvest. Feed intake and gain on rations containing straw baled at 10 and 28 days after seed harvest were not different (P>.05).

Footnotes

1 Partial support for these studies was provided by the NezPerce Prairie Grass Growers Association, NezPerce ID, and the Idaho Research Council.

2 Present address: Route 1, Box 9, Tygh Valley, OR 99063.

3 Southwest Idaho Research & Extension Center, Route 8, Box 8478, Caldwell, 83605.

4 Idaho Agr. Exp. Sta. Pub. No. 7844.






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