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Title: Association between Loin Ultimate pH and Plasma Indicators of Pre-Slaughter Stressors in Australian Lamb
Contributor(s): Stewart, Sarah M (author); McGilchrist, Peter  (author)orcid ; Gardner, Graham E (author); Pethick, David W (author)
Publication Date: 2018
Open Access: Yes
DOI: 10.22175/mmb2017.10.0050
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Abstract: The purpose of this study was to test if associations exist between plasma indicators of acute and chronic stress and lamb ultimate pH. Blood was collected at exsanguination from 2,877 lambs from the Meat and Livestock Australia Genetic Research flock with a suite of indicators analyzed. Ultimate pH was measured in the loin (M. longissimus lumborum) at 24 h post-slaughter. There was a positive association (P < 0.05) between ultimate pH and plasma glucose and lactate concentrations, which indicates that opportunities exist to reduce variation in ultimate pH by reducing stress in the preslaughter period. These effects were small by comparison to production factors, however further understanding of how to best manage lambs in the pre-slaughter period is required to minimize stress and maximize lamb wellbeing and meat quality.
Publication Type: Journal Article
Source of Publication: Meat and Muscle Biology, 2(1), p. 254-264
Publisher: Iowa State University Digital Press
Place of Publication: United States of America
ISSN: 2575-985X
Field of Research (FOR): 070203 Animal Management
Socio-Economic Objective (SEO): 830310 Sheep - Meat
830311 Sheep - Wool
830599 Primary Animal Products not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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