Across countries implementation of handheld near-infrared spectrometer for the on-line prediction of beef marbling in slaughterhouse

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Kombolo-Ngah, Moïse | Goi, Arianna | Santinello, Matteo | Rampado, Nicola | Atanassova, Stefka | Liu, Jingjing | Faure, Pascal | Thoumy, Laure | Neveu, Alix | Andueza, Donato | de Marchi, Massimo | Hocquette, Jean-François

Edité par CCSD -

International audience. Only few studies have used Near-Infrared (NIR) spectroscopy to assess meat quality traits directly in the chiller. The aim of this study was therefore to investigate the ability of a handheld NIR spectrometer to predict marbling scores on intact meat muscles in the chiller. A total of 829 animals from 2 slaughterhouses in France and Italy were involved. Marbling was assessed according to the 3G (Global Grading Guaranteed) protocol using 2 different scores. NIR measurements were collected by performing 5 scans at different points of the Longissimus thoracis. An average MSA marbling score of 330-340 was obtained in the two countries. The prediction models provided a R2 in external validation between 0.46 and 0.59 and a standard error of prediction between 83.1 and 105.5. Results did provide a moderate prediction of the marbling scores but can be useful in the European in-dustry context to predict classes of MSA marbling.

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