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Mineral concentrations in bovine milk from farms with contrasting grazing management

Stergiadis, S. ORCID: https://orcid.org/0000-0002-7293-182X, Qin, N., Faludi, G., Beauclercq, S., Pitt, J., Desnica, N., Pétursdóttir, Á. H., Newton, E. E., Angelidis, A. E., Givens, I., Humphries, D. J., Gunnlaugsdóttir, H. and Juniper, D. T. (2021) Mineral concentrations in bovine milk from farms with contrasting grazing management. Foods, 10 (11). ISSN 2304-8158

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To link to this item DOI: 10.3390/foods10112733

Abstract/Summary

Thirty conventional and 24 organic dairy farms were divided into equal-number 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. Pasture, concentrate feeds intakes and the contribution of non-Holstein breeds were the key drivers for these changes. Milk Ca and P concentrations were lower in standard-pasture conven-tional 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; due to relatively low numerical differences the subsequent impact on consumers’ mineral intakes would be minor.

Item Type:Article
Refereed:Yes
Divisions:Interdisciplinary Research Centres (IDRCs) > Institute for Food, Nutrition and Health (IFNH)
Life Sciences > School of Agriculture, Policy and Development > Food Production and Quality Division > Animal, Dairy and Food Chain Sciences (ADFCS)
ID Code:101144
Publisher:MDPI

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