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

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

Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.