Objective grading of eye muscle area, intramuscular fat and marbling in Australian beef and lamb

S.M. Stewart; T. Lauridsen; H. Toft; D.W. Pethick; G.E. Gardner; P. McGilchrist; M. Christensen

doi:10.1016/j.meatsci.2020.108358

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Objective grading of eye muscle area, intramuscular fat and marbling in Australian beef and lamb

Journal article

Peer reviewed

Objective grading of eye muscle area, intramuscular fat and marbling in Australian beef and lamb

S.M. Stewart, T. Lauridsen, H. Toft, D.W. Pethick, G.E. Gardner, P. McGilchrist and M. Christensen

Meat Science, Vol.181, Article 108358

2021

DOI: https://doi.org/10.1016/j.meatsci.2020.108358

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Abstract

The objective of this study was to test the performance of a prototype vision system in phenotypically diverse beef and lamb carcasses against visual grading of eye muscle area (EMA), marbling and chemical intramuscular fat (IMF%). Validation in beef demonstrated that the camera prototype in combination with analytical techniques enabled prediction of EMA (r2 = 0.83, RMSEP = 6.4 cm2), MSA marbling (r2 = 0.76, RMSEP = 66.1), AUS-MEAT marbling (r2 = 0.70, RMSEP = 0.74) and chemical IMF% (r2 = 0.78, RMSEP = 1.85%). Accuracy was also maintained on validation with all four traits displaying minimal bias of −3.6, 6.3, 0.07 and − 0.01, for EMA, MSA marbling, AUS-MEAT marbling and IMF% respectively. Preliminary analysis in lamb indicates potential of the system for the prediction of EMA (r2 = 0.41, RMSEP = 1.87) and IMF% (r2 = 0.28, RMSEP = 1.10), however further work to standardise image acquisition and environmental conditions is required.

Details

Title: Objective grading of eye muscle area, intramuscular fat and marbling in Australian beef and lamb
Authors/Creators: S.M. Stewart (Author/Creator)
T. Lauridsen (Author/Creator)
H. Toft (Author/Creator)
D.W. Pethick (Author/Creator)
G.E. Gardner (Author/Creator)
P. McGilchrist (Author/Creator)
M. Christensen (Author/Creator)
Publication Details: Meat Science, Vol.181, Article 108358
Publisher: Elsevier
Identifiers: 991005541786507891
Murdoch Affiliation: School of Agricultural Sciences; Food Futures Institute
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.51 Dairy & Animal Sciences; 3.51.206 Meat Quality
Web Of Science research areas: Food Science & Technology
ESI research areas: Agricultural Sciences