Effet de l’incorporation de farine de luzerne dans l'alimentation et de l’ajout de paille sur le bien-être des porcs et le risque d’odeurs sexuelles en élevage biologique - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Poster Year : 2024

Effect of adding lucerne to the diet and additional straw bedding on the welfare of pigs and the risk of boar taint in organic farming

Effet de l’incorporation de farine de luzerne dans l'alimentation et de l’ajout de paille sur le bien-être des porcs et le risque d’odeurs sexuelles en élevage biologique

Abstract

Raising pigs while respecting animal welfare is a major goal of organic farming; however, castration is still practiced to prevent boar taint. A trial was conducted on an organic farm to test a strategy to reduce this risk. This strategy included adding fibre to the diet and additional straw distributed into the pen during fattening and just before slaughter. Four fattening batches (sow Naïma X boar Piétrain) consisting of 337 pigs, including 165 non-castrated males) were used. Two conditions were tested: a control group and a test group with an additional 20 % of bedding during the rearing process, along with the addition of straw 48 hours before the first departure to the slaughterhouse. Additionally, the Test group received feed enriched with 10 % lucerne meal during the last month. Health indicators (presence of coughing, lameness, hernias, etc.) and well-being indicators (aggression, cannibalism, human-animal relationship test, etc.) were recorded three times per group (beginning, middle, and end of the fattening period). To assess carcass quality, carcass characteristics were collected from all non-castrated males. Analyses of androstenone and skatole levels were performed using backfat samples. Welfare indicators and carcass characteristics were similar in both groups of pigs. However, fewer carcasses were above the consumer rejection thresholds for androstenone (3 μg/g liquid fat) and skatole (0.15 μg/g liquid fat) in the test (respectively 27 % and 3 %) than in the control group (respectively 41 % and 20 %). The combination of both strategies had no impact on the well-being of the pigs but is effective in reducing the risk of sexual odours.
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Dates and versions

hal-04453344 , version 1 (12-02-2024)

Licence

Attribution - NonCommercial - NoDerivatives

Identifiers

  • HAL Id : hal-04453344 , version 1

Cite

Alexandre Poissonnet, Valérie Courboulay, Gérald Huet, Didier Gaudré, Armelle Prunier. Effet de l’incorporation de farine de luzerne dans l'alimentation et de l’ajout de paille sur le bien-être des porcs et le risque d’odeurs sexuelles en élevage biologique. 56. Journées de la Recherche Porcine (JRP), Feb 2024, Saint Malo, France. Ifip, Animal science proccedings (à venir), pp.315-316, 2024, 56èmes Journées de la recherche porcine. ⟨hal-04453344⟩
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