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Effect of Feeding Intensity and Milking System on Nutritionally Relevant Milk Components in Dairy Farming Systems in the North East of England

Lookup NU author(s): Dr Sokratis Stergiadis, Professor Carlo Leifert, Emeritus Professor Chris Seal, Dr Michael Eyre, Dr Havard Steinshamn, Gillian Butler

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Abstract

There is increasing concern that the intensification of dairy production reduces the concentrations of nutritionally desirable compounds in milk This study therefore compared important quality parameters (protein and fatty acid profiles; alpha-tocopherol and carotenoid concentrations) in milk from four dairy systems with contrasting production intensities (in terms of feeding regimens and milking systems). The concentrations of several nutritionally desirable compounds (beta-lactoglobulin, omega-3 fatty acids, omega-3/omega-6 ratio, conjugated linoleic acid c9t11, and/or carotenoids) decreased with increasing feeding intensity (organic outdoor >= conventional outdoor >= conventional indoors). Milking system intensification (use of robotic milking parlors) had a more limited effect on milk composition, but increased mastitis incidence. Multivariate analyses indicated that differences in milk quality were mainly linked to contrasting feeding regimens and that milking system and breed choice also contributed to differences in milk composition between production systems.


Publication metadata

Author(s): Stergiadis S, Leifert C, Seal CJ, Eyre MD, Nielsen JH, Larsen MK, Slots T, Steinshamn H, Butler G

Publication type: Article

Publication status: Published

Journal: Journal of Agricultural and Food Chemistry

Year: 2012

Volume: 60

Issue: 29

Pages: 7270-7281

Print publication date: 27/06/2012

ISSN (print): 0021-8561

ISSN (electronic): 1520-5118

Publisher: American Chemical Society

URL: http://dx.doi.org/10.1021/jf301053b

DOI: 10.1021/jf301053b


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