HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by White, T. W. Articles by Reynolds, W. L. Search for Related Content PubMed Articles by White, T. W. Articles by Reynolds, W. L.

Comparison of Various Length Collection Periods in Digestion Trials with Steers Fed Various Levels of Roughage

Louisiana Agricultural Experiment Station, Crowley 70526 and Baton Rouge 70803 and U.S. Department of Agriculture, Jeanerette 70544

Abstract

Dehydrated Coastal bermudagrass and rice straw pellets were fed as 0, 20, 40, 60, 80 and 100% of the ration during metabolism studies. Fecal collections were made daily and digestion coefficients determined for each nutrient on each of 7 days. The data were combined to give various length collection periods so that the error associated with each collection period length could be evaluated. Error mean squares and coefficients of variation for nutrient digestibility and fecal dry matter are presented. After 4 days were included in the collection period, variation did not decrease appreciably. Variance declined as the level of Coastal bermudagrass increased but was similar at the 40, 60, 80, and 100% rice straw levels.

¹ Rice Experiment Station, Crowley, Louisiana, 70526.

² Department of Experimental Statistics, Louisiana State University, Baton Rouge 70803.

³ Department of Animal Science, Louisiana State University, Baton Rouge, 70803.

⁴ Iberia Livestock Experiment Station, A.R.S., Jeanerette, 70544.