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| Eriksen, J.; Søegaard, K.; Kristensen, T.; Fretté, X.C.; Wiking, L.; Holm Nielsen, J.. |
| 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... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Dairy cattle. |
| Ano: 2007 |
URL: http://orgprints.org/11223/3/11223.pdf |
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| Fretté, C.; Kristensen, Troels; Eriksen, J.; Søegaard, Karen; Sørensen, John; Wiking, L.; Nielsen, J.H.. |
| Because of its high saturated fatty acid (FA) content milk fat is considered hypercholesterolemic. Intake of unsaturated FA (UFA) reduces the plasma cholesterol concentrations. Especially conjugated linoleic acids (CLA) have shown positive effects on cardiovascular diseases, prevention of cancer and obesity. The aim of our project is to investigate how grazing can enhance the content of these beneficiary FA in milk. For bith types of cow races we observed no direct effect of increased grazing in the diet on the short chain FA (SCFA) content in milk, implying that the de novo synthesis of these FA remained unaffected. Regarding the content of CLA c9,t11 there was a strong positive effect on Holstein milk (R2 = 0,88), but almost none on Jersey milk when the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16366/1/16366.pdf |
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| Dickow, J.A.; Larsen, L.B.; Hammershøj, M.; Wiking, L.. |
| The development in lipoprotein lipase (LPL) activity and free fatty acids were studied in freshly milked non-cooled milk from individual Danish Holstein or Jersey cows, or after storage for up to 24 h at either cooling temperature at 4ºC or at the milking temperature at 31ºC. LPL activity increased in the cream phase upon cooling, while the activity in the skimmed milk was either steady, as observed for Jersey cows, or increased, as seen for the Holsteins, in the skim milk upon cooling for up to 24 h. Storage at 31ºC decreased the LPL activity in both the cream phase and the skim milk phase. The increase in free fatty acids was found to depend on potential lipoprotein lipase activity, incubation temperature, substrate availability, and incubation time.... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2011 |
URL: http://orgprints.org/17279/1/17279.pdf |
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| Eriksen, J.; Søegaard, K.; Kristensen, T.; Fretté, X.C.; Wiking, L.; Holm Nielsen, J.. |
| 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... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Dairy cattle. |
| Ano: 2007 |
URL: http://orgprints.org/11224/4/11224.pdf |
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| Wiking, L.; Theil, Peter K.; Nielsen, Jacob H.; Sørensen, Martin T.. |
| The impact of fresh legume types or silage on the composition of milk fatty acids and transcription of enzymes involved in the synthesis of milk fat in cows was studied. Three groups of cows grazed white clover, red clover and lucerne, respectively. A fourth group of cows was fed maize/grass silage. The cows grazing high proportions of legumes produced significantly more C18:1 trans-11, C18:2 cis9-trans11, C18:2 trans10-cis12 and C18:3 fatty acids than cows fed silage. White clover and lucerne grazing resulted in significantly less output of C18:1 trans9 in milk than red clover grazing and maize/grass silages. The transcription of Stearoyl-CoA desaturase (SCD) in mammary tissue was significantly increased by grassing high proportions legume whereas fatty... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/16596/1/16596.doc |
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