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Mineral Concentrations in Bovine Milk from Farms with Contrasting Grazing Management.

ABSTRACT: Thirty conventional and twenty-four organic dairy farms were divided into equal numbers within system groups: high-pasture, standard-pasture, and low-pasture groups. Milk samples were collected monthly for 12 consecutive months. Milk from high-pasture organic farms contained less fat and protein than standard- and low-pasture organic farms, but more lactose than low-pasture organic farms. Grazing, concentrate feed intake and the contribution of non-Holstein breeds were the key drivers for these changes. Milk Ca and P concentrations were lower in standard-pasture conventional farms than the other conventional groups. Milk from low-pasture organic farms contained less Ca than high- and standard-pasture organic farms, while high-pasture organic farms produced milk with the highest Sn concentration. Differences in mineral concentrations were driven by the contribution of non-Holstein breeds, feeding practices, and grazing activity; but due to their relatively low numerical differences between groups, the subsequent impact on consumers' dietary mineral intakes would be minor.

SUBMITTER: Stergiadis S

PROVIDER: S-EPMC8620383 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Production and Health Management from Grazing to Confinement Systems of Largest Dairy Bovine Farms in Azores: A Farmers' Perspective.

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Project description:Bovine milk Metagenomic assembly

| PRJNA667207 | ENA

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Project description:bovine milk 16S rRNA V3-V4 Raw sequence reads

| PRJNA680351 | ENA

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Project description:Bovine milk Metagenome

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Project description:Bovine Milk Raw sequence reads

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