Influence of organic farming practices on selenium
concentration of tank milk - a farm study

E. Kuusela; L. Okker

doi:10.22358/jafs/74121/2007

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Suppl. 1/2007 vol. 16

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ORIGINAL PAPER

Influence of organic farming practices on selenium concentration of tank milk - a farm study

E. Kuusela ¹

L. Okker ¹

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University of Joensuu, Faculty of Biosciences, P.O. Box 111, FI-80101 Joensuu, Finland

Publication date: 2007-01-26

Corresponding author

E. Kuusela

University of Joensuu, Faculty of Biosciences, P.O. Box 111, FI-80101 Joensuu, Finland

J. Anim. Feed Sci. 2007;16(Suppl. 1):97-101

DOI: https://doi.org/10.22358/jafs/74121/2007

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The objective of this study was to determine whether current organic dairy farming practices provide adequate selenium (Se) supply for animals and consumers. The project was carried out as a survey in Eastern Finland. Tank milk samples from 65 farms were analysed at MTT Agrifood Research Finland. The average daily Se supplementation was 4.7 mg Se/cow. Tank milk Se concentration averaged 0.013 mg/kg. Farms practicing organic animal production resulted in 1/3 lower milk Se than farms practicing only organic crop production (P<0.001). This study showed that, despite of recommended Se supplementation level, organic farming could not transform it into milk Se concentration.

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1230-1388

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