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


     

J. Anim Sci. 1983. 56:608-615.
© 1983 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 Vimini, R. J.
Right arrow Articles by Kruggel, W. G.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Vimini, R. J.
Right arrow Articles by Kruggel, W. G.

Influence of Delayed Bleeding after Stunning on Beef Muscle Characteristics1

R. J. Vimini, R. A. Field, M. L. Riley, J. C. Williams, G. J. Miller and W. G. Kruggel

University of Wyoming, Laramie 82071

Abstract

The influence of delayed bleeding on characteristics of bovine longissimus and biceps femoris muscles from 39 heifers and 36 steers was studied. Animals were stunned with a captive bolt stunner and controls were bled immediately after stunning by severing the carotid arteries and jugular veins. Experimental heifers were bled 3 or 6 min after stunning, and the experimental steers were bled 3 or 30 min after stunning by severing the atlas joint and removing the head. Collected blood represented 5.6, 3.9 and 3.7% of the heifer carcass weight for control, 3-min and 6-min groups and 5.9, 4.9 and 4.1% of the steer carcass weight for control, 3-min and 30-min groups, respectively. Pluck and liver weights did not vary among treatments for steers or heifers, but spleen weights tended to be heavier in animals where bleeding was delayed after stunning. Delayed bleeding did not influence cooler shrink, muscle pH, fat color, microbial growth, waterholding capacity or percentages of sarcoplasmic protein, total protein, moisture or intramuscular fat in the muscles studied. Muscles from heifers decapitated 6 min after stunning had more Fe than muscles from heifers in control or 3-min experimental groups, but delayed bleeding did not influence Fe in muscle from steers. Overall, delayed bleeding after stunning decreased the weight of blood lost and tended to increase carcass weight and spleen weight, but had very little influence upon characteristics of the two muscles studied.

Footnotes

1 Published with the approval of the Director, Univ. of Wyoming Exp. Sta. as Scientific Series Paper No. 1188.

2 Division of Anim. Sci.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1983 by the American Society of Animal Science.