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PhytoMilk: Effects of botanical composition and harvest system of legume/grass silage on fatty acid, α-tocopherol and β-carotene concentration in organic forage and milk

Höjer, Annika; Martinsson, Kjell; Jensen, Søren K. and Gustavsson, Anne-Maj (2010) PhytoMilk: Effects of botanical composition and harvest system of legume/grass silage on fatty acid, α-tocopherol and β-carotene concentration in organic forage and milk. In: Rasmussen , Jim; Schacht, Margit and Helgadóttir, Áslaug (Eds.) The potential of forage legumes to sustain a high agricultural productivity - a Nordic perspective, 6 (3), NJF Report, pp. 133-136.

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Summary

Red clover and high proportion of forage in dairy cow diet increases the concentration of bioactive substances in milk, e.g. unsaturated fatty acids and antioxidants. In the present experiment twenty-four Swedish Red dairy cows were fed three silages in a Latin Square design to study the effect of silage botanical composition and harvest time on milk fatty acid, α-tocopherol and β-carotene concentration. The silages were red clover/grass silage (mixture of first and second cut), red clover/grass silage (mixture of first, second and third cut) and birdsfoot trefoil/grass silage (mixture of first and second cut). Botanical composition and harvest system affected silage vitamin and fatty acid concentration with higher concentrations of α-linolenic acid, α-tocopherol and β-carotene in red clover/grass silage (mixture of three harvests). Milk linoleic and α-linolenic acid concentration was higher with the two red clover diets but α-tocopherol, β-carotene and retinol concentration was not affected.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Other
Keywords:PhytoMilk, legume, grass, dairy cow, fatty acid, vitamin
Subjects: Animal husbandry > Production systems > Dairy cattle
"Organics" in general
Crop husbandry > Production systems > Pasture and forage crops
Food systems > Food security, food quality and human health
Research affiliation: European Union > CORE Organic > PHYTOMILK
Denmark > AU - Aarhus University > AU, DJF - Faculty of Agricultural Sciences
Sweden > University SLU > Agricultural Research for Northern Sweden
ISSN:1653 2015
Deposited By: Höjer, Miss Annika
ID Code:18829
Deposited On:26 May 2011 06:25
Last Modified:26 May 2011 06:25
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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