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Research article - Peer-reviewed, 2020

Carcass characteristics and meat quality attributes in lambs reared indoors, on cultivated pasture, or on semi-natural pasture

Stenberg, Elin; Karlsson, Anders; Öhgren, Camilla; Arvidsson Segerkvist, Katarina

Abstract

This study evaluated the effects of different lamb production systems on live weight gain (LWG), carcass quality and meat quality. Four production systems for weaned intact male lambs were examined: indoor feeding with grass silage and concentrate (group 1), grazing on cultivated pasture with (group 2) or without (group 3) concentrate, and grazing on semi-natural pasture (group 4). Live weight, carcass weight, dressing percentage, carcass conformation, fatness and pH decline were recorded at slaughter, and M. longissimus thoracis et lumborum was analysed for colour, thawing and cooking loss, pH after 24 hours and 6 days, and Warner-Bratzler shear force. LWG was strongly affected by production system, being highest for group 1 and lowest for group 4 (p<0.001). Group 4 had the lowest conformation (p=0.002) and fat scores (p<0.001). Hence, production system affected age at slaughter, live weight gain, weight at slaughter, carcass conformation and fatness scores, but caused no differences in meat quality attributes in intact male lambs.

Keywords

production system; intact male lamb; live weight gain; pH; colour; Warner-Bratzler shear force

Published in

Agricultural and Food Science
2020, volume: 29, number: 5, pages: 432-441

Authors' information

Swedish University of Agricultural Sciences, Department of Animal Environment and Health
Öhgren, Camilla
RISE Research Institutes of Sweden
Swedish University of Agricultural Sciences, Department of Animal Environment and Health

UKÄ Subject classification

Food Science
Animal and Dairy Science

Publication Identifiers

DOI: https://doi.org/10.23986/afsci.91706

URI (permanent link to this page)

https://res.slu.se/id/publ/109629