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Organic and conventional milk – comparing apples to apples?

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  Consumers perceive that organic cow milk differs from conventionally produced milk and that these differences justify the premium price for organic milk. In a review published in the Journal of Dairy Science®, researchers in New Zealand found that the differences between organic and conventional milk are not so straightforward.
 Reviewing almost 200 publications, researchers concluded that previously conducted controlled studies investigating whether differences exist between organic and conventionally produced milk have so far been largely ambiguous, due principally to the complexity of the research question and the number of factors and variables that can influence milk composition. ”This review presents one of the most detailed treatises to date of organic versus conventional milk composition,” commented Matt Lucy, PhD, Professor of Animal Science, University of Missouri, and Editor-in-Chief of the Journal of Dairy Science®.
 ”When comparing organic and conventional milk composition (especially milk fatty acids), previous studies have generally compared organic dairying with milk produced from grass-fed cows to conventional dairying with milk produced from concentrate-fed cows. The differences in milk composition observed are actually due to the different diets of the cows (i.e. pasture versus concentrate feeding) rather than organic versus conventional farming systems,” according to lead investigator Don Otter, PhD, Senior Scientist, Food & Bio-based Products, AgResearch Grasslands Research Centre (New Zealand).
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Updated: 10 juli, 2016 — 14:30
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