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Effect of pasture botanical composition on milk quality in organic production

Adler, Steffen; Dahl, A.V.; Steinshamn, H.; Vae, A.H.; Thuen, E.; Garmo, T. and Krogh-Jensen, S. (2009) Effect of pasture botanical composition on milk quality in organic production. In: NJF Report 5(2), NJF, Nordic Association of Agricultural Scientists, Tartu, Estonia, p. 69.

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Summary

A continuous grazing experiment with three measurement periods, 3 weeks each, was conducted with 16 Norwegian Red dairy cows in mid lactation to compare milk quality when grazing red clover-grass (R) or botanical diverse pasture (D). The cows were offered either R or D from the start of grazing season in mid May until beginning of September 2008. Milk yield was measured and milk samples were collected in the last week in each period (end of June, beginning of August and end of August). Pasture type had no effect on milk yield and milk content of fat or protein. Cows grazing R had higher proportion of the fatty acids C18:0 (22.41 vs. 9.96, P<0.05) and C18:1t11 (0.58 vs. 0.44 g/100g FAME, P<0.05) and lower proportion of C16:0 (27.83 vs. 30.92, P<0.05) in their milk fat than the cows grazing D. The milk content of α-tocopherol was higher in milk from R than D (3.01 vs. 2.64 μg/ml,P<0.05). The oxidative stability of the milk lipids were only minor affected by pasture type


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:PHYTOMILK, Phytomilk,phytomilk, PhytoMilk, grazing, milk quality
Subjects: Crop husbandry > Production systems > Pasture and forage crops
Food systems > Food security, food quality and human health
Animal husbandry > Production systems > Dairy cattle
Research affiliation: Norway > UMB - Norwegian University of Life Sciences
Norway > Nofima (formerly Matforsk)
Denmark > AU - Aarhus University > AU, DJF - Faculty of Agricultural Sciences
Norway > Bioforsk - Norwegian Institute for Agriculture and Environmental Research > Bioforsk Organic Food and Farming Division
European Union > CORE Organic > PHYTOMILK
ISBN:ISSN 1653-2015
Deposited By: Steinshamn, Dr Håvard
ID Code:16865
Deposited On:18 Mar 2010 11:53
Last Modified:04 Nov 2011 12:28
Document Language:English
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information:The work is a part of the CORE Organic pilot project "PhytoMilk" funded by the CORE ORGANIC Funding Body Network. All the text is shown in the summary and hence no file is attached to this item.

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