title: Comparison of rankings for lean meat based on results from a CT scanner and a video image analysis system.
abstract: Coopworth cross lambs born over three years were examined in this study. Differences between two machines; a computer tomography (CT) scanner and a VIAScan® system for the estimation of carcase lean weight in lamb carcases was examined. The CT scanner provided a significantly higher estimate of carcase lean. The rank correlation (0.84) between the CT scanner and the VIAScan® system for the prediction of carcase lean was significant, but there was a different ranking for carcase lean depending on which machine was used. This has important ramifications for the use of VIAScan® data in the New Zealand Sheep Improvement Ltd genetic programme.
authors.affiliation: Faculty of Agriculture and Life Sciences, PO Box 84, Lincoln University, Christchurch 7647, New Zealand. Electronic address: Nigel.Jay@actrix.co.nz.
authors.forename: N P
authors.initials: NP
authors.lastname: Jay
authors.affiliation: NSW Department of Primary Industries, Orange Agricultural Institute, Forest Road, Orange, NSW 2800, Australia.
authors.forename: R J
authors.initials: RJ
authors.lastname: van de Ven
authors.affiliation: NSW Primary Industries, Centre for Red Meat and Sheep Development, PO Box 129, Cowra, NSW 2794, Australia.
authors.forename: D L
authors.initials: DL
authors.lastname: Hopkins
mesh_terms: D000273:Adipose Tissue / Q000737:chemistry; D000818:Animals; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D016014:Linear Models; D008460:Meat / Q000032:analysis* / Q000145:classification; D018482:Muscle, Skeletal / Q000737:chemistry; D009520:New Zealand; D034561:Sheep, Domestic; D015898:Tomography Scanners, X-Ray Computed
keywords: Computed tomography; Lambs; VIAScan®; lean meat yield