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  • 标题:Mineral Concentrations in Bovine Milk from Farms with Contrasting Grazing Management
  • 本地全文:下载
  • 作者:Sokratis Stergiadis ; Nanbing Qin ; Gergely Faludi
  • 期刊名称:Foods
  • 电子版ISSN:2304-8158
  • 出版年度:2021
  • 卷号:10
  • 期号:11
  • DOI:10.3390/foods10112733
  • 语种:English
  • 出版社:MDPI Publishing
  • 摘要: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.
  • 关键词:dairy cow; grazing; heavy metals; macrominerals; milk; organic; pasture; production system; trace elements
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