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The fatty acid composition of muscle and adipose tissues from entire and castrated male Boer goats raised in Australia

Published online by Cambridge University Press:  18 August 2016

N. M. Werdi Pratiwi ,
P. J. Murray  and
D. G. Taylor
N. M. Werdi Pratiwi
Affiliation:
School of Animal Studies, University of Queensland, Gatton Campus, Queensland 4343, Australia
P. J. Murray*
Affiliation:
School of Animal Studies, University of Queensland, Gatton Campus, Queensland 4343, Australia
D. G. Taylor
Affiliation:
School of Animal Studies, University of Queensland, Gatton Campus, Queensland 4343, Australia
*
†E-mail: [email protected]
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Abstract

The fatty acid composition of longissimus thoracis (LT) muscle and adipose tissues (subcutaneous and intermuscular fat) from castrated and entire male Boer goat bucks was investigated. Sixty Boer bucks in groups of between three and five animals were slaughtered at 5, 15, 30, 45, 60, 75, 90 and 105 kg live weight (5 and 15 kg animals were not castrated). The fatty acid composition of LT muscle from castrated and entire Boers was significantly affected by slaughter weight. The fatty acid content ofLT muscle and subcutaneous and intermuscular fat from both castrated and entire Boer bucks was primarily composed of oleic acid followed by palmitic and stearic acid. Both oleic and palmitic acid increased with slaughter weight whereas stearic acid decreased. LT muscle from castrated Boer bucks contained higher amounts of desirable fatty acids. In contrast to slaughter weight, castration of Boer bucks resulted in only minor changes in fatty acid composition of adipose tissues. It can be concluded that slaughter weight plays a role in changing the fatty acid composition ofLT muscle and adipose tissues from Boer bucks.

Keywords

adipose tissuecastrationfatty acidsgoatslongissimus thoracis
Type
Growth, development and meat science
Information
Animal Science , Volume 79 , Issue 2 , October 2004 , pp. 221 - 229
Copyright
Copyright © British Society of Animal Science 2004

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