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Effect of clover species in grass-clover silages and concentrate supplementation on milk fatty acid composition

Steinshamn, Håvard; Thuen, Erling and Brenøe, Ulrik Tutein (2006) Effect of clover species in grass-clover silages and concentrate supplementation on milk fatty acid composition. Paper at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

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Summary

The effect of clover species and level of concentrate supplementation on milk fatty acid (FA) composition has been studied. White (WC) and red clover (RC) grown in mixture with grasses were preserved in round bales and fed to autumn calving dairy cows during the first 10 weeks of lactation. Milk FA was higher in linolenic acid, vaccenic acid and rumenic acid for RC than for WC silage (0.90 vs. 0.79 %, 1.52 vs. 1.36 %, 0.90 vs. 0.75 % for these 3 FA, re-spectively), and RC silage gave a higher n-3/n-6 milk FA ratio than WC (0.98 vs. 0.72). Concentrate sup-plementation decreased the level of vaccenic acid (1.21 vs. 1.68 %), linolenic acid (0.63 vs. 1.05 %) and the n-3/n-6 ratio (0.55 vs. 1.16) as compared with no supplementation, and the effect of supple-mentation was similar for the two silages.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Food systems > Food security, food quality and human health
Animal husbandry
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 9: Organic animal products: quality and safety
Deposited By: Steinshamn, Dr Håvard
ID Code:7217
Deposited On:10 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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