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Herbage and milk productivity and quality when grazing different legumes and herbs

Eriksen, J.; Søegaard, K.; Kristensen, T.; Fretté, X.C.; Wiking, L. and Holm Nielsen, J. (2007) Herbage and milk productivity and quality when grazing different legumes and herbs. In: Helgadóttir, Áslaug and Pötsch, Erich M. (Eds.) Quality Legume-based Forage Systems for Contrasting Environments, Ferderal Research and Education Centre Raumberg-Gumpenstein, pp. 177-180.

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In order to evaluate how different legumes and herbs affects the quality of organic milk a grazing study was performed at the organic research station Rugballegaard with 48 dairy cows. Swards with Lucerne (Medicargo sativa), red clover (Trifolium pratense), white clover (Trifolium repens) and white clover together with chicory (Cichorium intybus), respectively, were established in 2005 together with perennial ryegrass (Lolium perenne) in two replicates. The study was carried out in 2006 over three two-weeks periods during the season. Generally, the proportion of legumes and chicory was high in the four species mixtures. Sward composition highly affected grazing behaviour. Sward height measurements indicate that the white clover mixture was eaten without much selection, the red clover was partly avoided in some areas, and in contrast lucerne seemed to be eaten selectively. In chicory swards selection occurred in a patchy way. Milk yield and protein content was unaffected by treatment. Milk urea content was clearly lowest in the milk from the cows grazing chicory.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Crop husbandry > Crop combinations and interactions
Animal husbandry > Production systems > Dairy cattle
Research affiliation: Denmark > DARCOF III (2005-2010) > ORMILKQUAL - High quality organic milk
Deposited By: Eriksen, Senior scientist Jørgen
ID Code:11223
Deposited On:01 Oct 2007
Last Modified:10 May 2012 12:31
Document Language:English
Refereed:Peer-reviewed and accepted

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