Bulk-tank milk samples were collected in January (2008) from 45 organic farms in Eastern Finland to examine their milk quality. Beside diets, current Se supplementation practices were also documented

Eurola, M.

Kuusela, E.

Okker, L.

English

Organic Eprints

NJF Report  Vol 5  No 2  Year 2009NJF Seminar 422Fostering healthy food systems through organic agriculture - Focus on Nordic-Baltic Region- International Scientific ConferenceTartu, Estonia, 25-27 August 2009Nordic Associationof Agricultural ScientistsContact: NJF General SecretariatE-mail: njf@njf.nuWebsite: www.njf.nuISSN 1653-2015NJF Report • Vol 5 • No 2 • Year 2009Tartu, Estonia, 25-27 August 2009NJF Seminar 422 Fostering healthy food systems through organic agriculture –  Focus on Nordic-Baltic RegionInternational Scientiﬁc ConferenceTartu, Estonia, August 25–27, 2009PROGRAMMEABSTRACTSLIST OF PARTICIPANTSOrganized byEstonian University of Life SciencesMinistry of Agriculture of the Republic of Estonia  Estonian Organic Farming FoundationNordic Association of Agricultural Scientists58International ScientiﬁcConference–NJF 422Selenium concentration of Finnish organic milk – a farm surveyL. Okker1, E. Kuusela1 and M. Eurola21 University of Joensuu, Faculty of Bioscience. Tel.: +358 13 251 111, fax: +0 13 251 3590; e-mail: laura.okker@joensuu.ﬁ2 Agrifood Research FinlandBulk-tank milk samples were collected in January (2008) from 45 organic farms in Eastern Finland to examine their milk quality. Beside diets, current Se supplemen-tation practices were also documented. Half of the farms (22) were certiﬁed all or-ganic (AORG) and the other half (23) practiced organic ﬁeld farming (FORG). Theaverage number of cows and annual milk yield was 27.5 and 8560 kg/cow, respec-tively. Milk Se concentrations were analysed at MTT Agrifood Research Finland and are presented here. The average milk Se concentration was 0.016 (0.004–0.033 mg/kg). Lowest values represented those farms using minor selenite supplementation and highest values were indicative for utilisation of selenised yeast. FORG farms re-sulted in higher milk Se than AORG farms (0.017 vs 0.014 mg/kg, P<0.05). Because of active consulting, participant research and permitted use of selenised yeast, Se concentration of organic milk has been improved since our previous monitoring (0.010 mg/kg, 2005/2006).Multi-goal pig ration formulation; mathematical optimization approachJ. Žgajnar and S. Kavčič1 University of Ljubljana, Biotechnical Faculty, Deptartment of Animal Science, Groblje 3, SI-1230 Domžale, Slovenia; e-mail: jaka.zgajnar@bfro.uni-lj.siOrganically produced pork is characterized by high production costs, within the main part goes to ration cost. Forage must be produced under strict conditions, reﬂecting in high prime costs. The main challenge for farmers is how to formulateeconomically eﬃcient, nutrition balanced and politically acceptable rations at theleast-cost to be competitive. This challenging task demands handy tool that merg-es all three viewpoints. In this paper an example of such a tool, based on three step approach, is presented. In the ﬁrst step, a common linear program is utilizedto formulate least-cost ration. In the second step, a sub-model, based on weighted goal programming and supported by a system of penalty functions, is used to for-mulate a nutritionally balanced and economically acceptable ration that also fulﬁlsconditions demanded by organic farming. The most ‘eﬃcient’ energy content ofthe ration is searched in the last step. The obtained results conﬁrm the beneﬁts ofthe applied approach.

Selenium concentration of Finnish organic milk - a farm survey

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