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Effect of selenite and selenised yeast supplementation on selenium concentration of Finnish organic milk – a farm study.

Okker, L; Kuusela, E and Eurola, M (2009) Effect of selenite and selenised yeast supplementation on selenium concentration of Finnish organic milk – a farm study. In: Fostering healthy food systems through organic agriculture – Focus on Nordic-Baltic Region, NJF, Estonia, 5, NJF Report, no. 2/2009, p. 59.

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Online at: http://www.njf.nu/filebank/files/20090909$091449$fil$U8fAU22R1o026caV8YY4.pdf

Summary

Experiment was conducted at 15 certified organic dairy farms in Eastern Finland during spring 2008. Farms were allocated to three balanced groups according annual milk yield, herd size and housing system. Three types of selenium (Se) supplementations: selenium yeast (SY), sodium selenite (SS) or their (50:50) combination (SYS) was used. Daily Se doses were adjusted according to milk yield basis (average 3 mg/d). Experimental model was 3 X 3 Latin square, consisting from 3 experiment periods. The length of each period was 28 days. RehuRaisio provided experimental
feeds. In the end of each period bulk-tank milk samples were collected and analysed for Se at MTT Agrifood Research Finland. The Se supplementation form was crucial for milk Se concentration (P<0.001), when Se concentration of basic fodder was extreme low (<0.01 mg/kg DM). SS (n=15) resulted to milk Se concentration of 0.012 mg/kg, but SYS (n=15) resulted to 1.9-fold and SY (n=14) to 2.3-fold higher
milk Se concentrations.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:PhytoMilk, milk selenium concentration, selenite, selenium yeast
Subjects: Food systems > Food security, food quality and human health
Animal husbandry > Feeding and growth
Research affiliation: Finland > Univ. Joensuu, Biology
Finland > MTT Agrifood Research
ISSN:ISSN 1653-2015
Deposited By: Kuusela, Eeva
ID Code:19081
Deposited On:10 Aug 2011 06:54
Last Modified:10 Aug 2011 06:54
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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