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Permanent link (DOI): https://doi.org/10.7939/R3TD9V

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Understanding the formation of the grade B4 Beef in Alberta Open Access

Descriptions

Other title
Subject/Keyword
dark cutting beef
meat science
colour
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Holdstock, Jamie H
Supervisor and department
Bruce, Heather (AFNS)
Examining committee member and department
Okine, Erasmus (AFNS)
Betti, Mirko (AFNS)
Varnhagen, Connie (Psychology)
Aalhus, Jennifer (Agriculture and Agri-Food Canada)
Department
Department of Agricultural, Food, and Nutritional Science
Specialization
Animal Science
Date accepted
2012-08-03T15:46:45Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
One hundred and seventy-nine (179) carcasses were surveyed for Longissimus thoracis (LT; rib eye) muscle pH from a commercial abattoir and results demonstrated that specific pH categories existed within the Canada B4 grade carcass population. About 72% of grade B4 carcasses had a muscle pH range of 6.0 to 7.0 and were categorized as classic dark cutters (CL), 21% of carcasses had a muscle pH range of 5.8 to 6.0 and were categorized as borderline dark cutters (BD), and 6% of carcasses had a muscle pH below 5.8 and were categorized as atypical dark cutters (AT). Carcass sides within the studied grade B4 sub-populations demonstrated reduced weights, but adequate muscling and fat cover. Muscle profiling of 12 muscles showed AT carcasses have potential for value recovery. In conclusion, Results indicate that animals within the AT pH category have sufficient energy ante mortem to produce beef of normal colour.
Language
English
DOI
doi:10.7939/R3TD9V
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File size: 5382327
Last modified: 2015:10:12 15:01:46-06:00
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Status message: File header gives version as 1.4, but catalog dictionary gives version as 1.3
File title: Microsoft Word - Holdstock Thesis 2012 Final 1.docx
File author: Jamie Heartstrong
Page count: 163
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