Connecting Grazing, Forage, and Milk Metabolomes to Enhance Consumer Health
2025
Anita Fleming | Philip Wescombe | Pablo Gregorini
The objective of this work was to explore the effect of taxonomically and phytochemically rich swards, as opposed to &lsquo:status quo&rsquo: monoculture of ryegrass and white clover swards, on animals and milk, by assessing the metabolomic profile of plant and milk samples. The results of this study suggest that metabolomic profiles and metabolism are altered by dietary diversity and grazing management. Several metabolites associated with enhanced consumer health were elevated in milk from cows that were grazed in functionally diverse swards as opposed to monoculture of ryegrass and white clover swards. The results show the value of metabolomics for the identification of metabolites associated with a &lsquo:pasture-fed diet&rsquo:, which is considered beneficial to human health compared with grain-fed milk products. Metabolomics also provide evidence that grazing management and the presence of key forages may be more beneficial for market differentiation of milk products that can enhance consumer health than maximisation of sward species diversification.
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