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| Elgersma, A.; Søegaard, K.; Jensen, S.K.. |
| Fresh forages are an important natural source of vitamins and fatty acids in ruminant diets, and their concentrations in forage species are important for the quality of animal-derived foods such as dairy and meat products. The aims of this study were to obtain novel information on vitamins and fatty acids (FA) in a variety of forage legumes and non-legume forb species compared to a grass−clover mixture and to explore implications for animal-derived products. Seven dicotyledons [four forbs (salad burnet (Sanguisorba minor), caraway (Carum carvi), chicory (Cichorium intybus), and ribwort plantain (Plantago lanceolata)) and three legume species (yellow sweet clover (Melilotus officinalis), lucerne (Medicago sativa), and birdsfoot trefoil (Lotus... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2013 |
URL: http://orgprints.org/24764/7/24764.pdf |
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| Elgersma, A.; Søegaard, K.; Jensen, S.K.. |
| Agronomic data on most broad-leaved species of grasslands are scarce. The aim of this study was to obtain novel information on herbage DM yield and forage quality for several forb species, and on species differences and seasonal patterns across harvests and in successive years. Four non-leguminous forbs [salad burnet (Sanguisorba minor), caraway (Carum carvi), chicory (Cichorium intybus) and ribwort plantain (Plantago lanceolata)] and three leguminous forbs [yellow sweet clover (Melilotus officinalis), lucerne (Medicago sativa) and birdsfoot trefoil (Lotus corniculatus)] and a perennial ryegrass–white clover mixture were investigated in a small-plot cutting trial in Denmark during 2009 and 2010. Plots were harvested four times per year. On average, annual... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2014 |
URL: http://orgprints.org/24763/7/24763.pdf |
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| Elgersma, A.; Søegaard, K.; Jensen, S.K.. |
| Grasslands provide an important part of the feed used by domestic and wild ruminants. Fresh forages are an important natural source of vitamins in ruminant diets. Most studies in forages have been carried out with perennial ryegrass and legume species such as white clover. As yield and quality data of broad-leaf grassland species are scarce, the aim of this study was to obtain novel information on vitamins in a number of herb species compared to a grass-clover mixture and to get insight into species differences and seasonal patterns across the various harvests and years. Seven herb species and a perennial ryegrass-white clover mixture were investigated in a cutting trial with four harvests (May–Oct) during 2009 and 2010. Vitamin concentrations were highest... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2012 |
URL: http://orgprints.org/24762/8/24762.pdf |
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| Elgersma, A.; Søegaard, K.; Jensen, S.K.. |
| Most studies in forages have been carried out with perennial ryegrass and legume species such as white clover. Recently, alfa-tocopherol and beta-carotene in a number of dicotyledonous forage species were compared to a grass-clover mixture. To develop management guidelines, insight into seasonal patterns across the various harvests and years is important. Therefore, four herb species, three legumes and a perennial ryegrass-white clover mixture were investigated in a cutting trial with four harvests (May-Oct) during 2009 and 2010. Concentrations of alfa-tocopherol and beta-carotene were highest in October and lowest in July. Biodiverse pastures could have added benefits in farming practice as various herbs outperformed the grass-clover mixture regarding... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2013 |
URL: http://orgprints.org/24710/6/24710.pdf |
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| Elgersma, A.; Tamminga, S.; Dijkstra, J.. |
| This chapter describes the fatty-acid profile of lipids in milk and herbage normally included in dairy diets. The next section deals with the possible effects of forage management on lipid intake in dairy cows. Then a detailed account is given of the fate of fatty acids in the rumen, showing that important microbial transactions occur through which unsaturated fatty acids become partly hydrogenated and are converted into intermediates, some of which exert important metabolic functions in the cow. When such intermediates are incorporated in and excreted with the milk, some are now considered to have beneficial effects on human health. In the last section examples are presented on how fatty-acid metabolism in dairy cows can and should be represented in terms... |
| Tipo: Conference proceedings |
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| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1252 |
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