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Comparison of rankings for lean meat based on results from a CT scanner and a video image analysis system
N P Jay1, R J van de Ven2, D L Hopkins3
1Faculty of Agriculture and Life Sciences, PO Box 84, Lincoln University, Christchurch 7647, New Zealand.
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.
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