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 Olson, T. M. Search for Related Content PubMed Articles by Olson, T. M.

The pH Values of the Ingesta of the Rumen of Slaughtered Animals¹

Department of Dairy Husbandry, South Dakota State College, Brookings, S. D.

ABSTRACT

In our work on bloat in bovines, we visited several packing plants to obtain samples of rumen gas. After the gas had been obtained the rumen was slit open, and a four-ounce sample of the rumen contents was taken. Samples of ingesta were also obtained from animals when no gas samples had previously been taken. No effort was made to obtain the ingesta in any particular part of the rumen. The sample consisted largely of the juice. When the juice was difficult to obtain by dipping, a quantity of ingesta was squeezed in the hand.

The juice was taken to the laboratory, where the pH was determined on a Coleman's electric potentiometer. In several instances the pH was determined the afternoon of the same day on which the ingesta samples were collected. In other cases the pH values were not determined until approximately 20 hours after the samples were taken.

¹ South Dakota Agricultural Experiment Station, Journal Series No. 145.