Grasslands: A Source of Secondary Metabolites for Livestock Health
2017
Poutaraud, Anne | Michelot, Alice | Plantureux, Sylvain | Laboratoire Agronomie et Environnement - Antenne Colmar (LAE-Colmar ) ; Laboratoire Agronomie et Environnement (LAE) ; Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL)-Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL) | Laboratoire Agronomie et Environnement (LAE) ; Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL)
International audience
Afficher plus [+] Moins [-]anglais. The need for environmentally friendly practices in animal husbandry, in conjunction with the reduction of the use of synthetic chemicals, leads us to reconsider our agricultural production systems. In that context, grassland secondary metabolites (GSMs) could offer an alternative way to support to livestock health. In fact, grasslands, especially those with high dicotyledonous plant species, present a large, pharmacologically active reservoir of secondary metabolites (e.g., phenolic compounds, alkaloids, saponins, terpenoids, carotenoids, and quinones). These molecules have activities that could improve or deteriorate health and production. This Review presents the main families of GSMs and uses examples to describe their known impact on animal health in husbandry. Techniques involved for their study are also described. A particular focus is put on antioxidant activities of GSMs. In fact, numerous husbandry pathologies, such as inflammation, are linked to oxidative stress and can be managed by a diet rich in anti-oxidants. The different approaches and techniques used to evaluate grassland quality for livestock health highlight the lack of efficient and reliable technics to study the activities of this complex phytocoektail. Better knowledge and management of this animal health resource constitute a new multidisciplinary research field and a challenge to maintain and valorize grasslands.
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