Caractéristiques des carcasses et risque d’odeur de la viande de porcs mâles biologiques non castrés - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Poster Year : 2024

Carcass characteristics and boar taint in entire male pigs from organic farms

Caractéristiques des carcasses et risque d’odeur de la viande de porcs mâles biologiques non castrés

Abstract

Rearing entire male pigs should improve feed conversion and lean meat percentage (LMP), but doing so risks tainting meat, due mainly to androstenone (A) and skatole (S) stored in fat tissues. This project focused on the performance and boar taint of entire male pigs in organic farming. Entire male pigs from six organic farms were monitored for one year. Data collection included age at slaughter, carcass weight, LMP (n = 849), human nose evaluation (n = 622), and S and A concentrations in backfat (n = 577). Most boars (84 %) were slaughtered before 210 days of age. Mean carcass weight also varied among farms (90.1 ± 0.7 to 99.2 ± 1.6 kg, P < 0.001) as did mean LMP (59.2 ± 0.3 to 60.7 ± 0.3 P < 0.001). When assessed by a human nose, most carcasses (94.5 %) were not considered boar tainted. Median S (0.02-0.06 μg/g pure fat) and A (0.54-1.78 μg/g) concentrations in backfat varied among farms (P < 0.001). A positive correlation was detected between A and S (P < 0.001), and between carcass weight and A (P < 0.03). Within farms, analyses revealed significant differences among trimesters on one farm for A and on a second farm for S and a positive correlation between age at slaughter and A on two farms (P < 0.03). Rearing entire male pigs can be a good alternative to castration in organic farming provided the risk of boar taint is controlled by choosing adapted rearing practices.
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Dates and versions

hal-04470382 , version 1 (21-02-2024)

Licence

Attribution - NonCommercial - NoDerivatives

Identifiers

  • HAL Id : hal-04470382 , version 1

Cite

Sarah Lombard, Florence Maupertuis, Antoine Roinsard, Armelle Prunier. Caractéristiques des carcasses et risque d’odeur de la viande de porcs mâles biologiques non castrés. 56. Journées de la Recherche Porcine (JRP), Feb 2024, Saint Malo, France. Ifip, Animal science proccedings (à venir), pp.319-320, 2024, 56èmes Journées de la recherche porcine. ⟨hal-04470382⟩
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