Effet de l’alimentation sur la qualité nutritionnelle du lait biologique collecté en France durant l’hiver

Abstract : The fatty acid composition of milk determines its nutritional value and health effects. In this study, we collected samples of organic milk during the winter in locations across France and then determined the relationship between animal diet and milk fatty acid composition. The samples contained relatively high percentages of saturated fatty acids (mean: 33% C16:0). Levels declined in March, which shows that allowing animals to graze, even when they have access to silage, improves the nutritional quality of their milk. The samples formed 3 groups based on their nutritional quality, and the groups displayed dietary differences. Milk quality was highest when cows had consumed a winter ration containing faba bean and a greater proportion of grass. Milk quality was lesser when cows who had consumed winter rations composed of maize- and grass-based silage or grain-based silage. No link could be identified between animal diet and individual milk samples.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-02352491
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Submitted on : Wednesday, November 6, 2019 - 8:10:03 PM
Last modification on : Thursday, November 7, 2019 - 1:37:24 AM

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  • HAL Id : hal-02352491, version 1
  • PRODINRA : 487766

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L. Boussamet, Sébastien Couvreur, Y. Levesque, Catherine Hurtaud. Effet de l’alimentation sur la qualité nutritionnelle du lait biologique collecté en France durant l’hiver. Fourrages, Association Française pour la Production Fourragère, 2019, 239, pp.207-210. ⟨hal-02352491⟩

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