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Classification of trace elements in tissues from organic and conventional French pig production

Parinet, Julien; Royer, Eric; Saint-Hilaire, Mailie; Chafey, Claude; Noel, Laurent; Minvielle, Brice; Dervilly-Pinel, Gaud; Engel, Erwan and Guérin, Thierry (2018) Classification of trace elements in tissues from organic and conventional French pig production. Meat Science, pp. 28-35.

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Document available online at: https://hal.inrae.fr/hal-02621464


This study assesses the impact of the farming system on the levels of copper, zinc, arsenic, cadmium, lead and mercury in pig tissues from three types of production (Organic (n = 28), Label Rouge (n = 12) and Conventional (n = 30)) randomly sampled in different slaughterhouses. All the concentrations were below regulatory limits. In muscles, Cu, Zn and As were measured at slightly higher levels in organic samples but no differences between organic and Label Rouge was observed. Livers from conventional and Label Rouge pig farms exhibited higher Zn and Cd contents than the organic ones, probably due to different practice in zinc or phytase supplementation of fattening diets. Principal component analysis indicated a correlation between Cu and As concentrations in liver and carcass weight, and between Zn and Cd liver levels and lean meat percentage. The linear discriminant analysis succeeded in predicting the farming process on the basis of the lean meat percentage and the liver Cd level.

EPrint Type:Journal paper
Keywords:ICPMS (en), food safety (en), linear discriminant analysis (en), organic meat (en), trace elements (en), pig tissues (fr)
Subjects:"Organics" in general
Research affiliation: France > INRAe - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
ISSN:ISSN: 0309-1740
Project ID:HAL-INRAe
Deposited By: PENVERN, Servane
ID Code:41150
Deposited On:12 Aug 2021 10:37
Last Modified:12 Aug 2021 10:37
Document Language:English

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