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Micro-mineral profile in different grassland species

Søegaard, K.; Sehested, J. and Jensen, S.K. (2010) Micro-mineral profile in different grassland species. In: Schnyder, H. et. al. (Ed.) Grassland in a changing world, pp. 566-568.

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Summary

The aim was to investigate the micro-mineral profile of herbage as affected by grassland species, cutting time and seasonality and in relation to dairy cow requirements. The different grassland species were grown and harvested in mixtures with one grass and one legume for two growing seasons. The species turned out to have very individual mineral profiles, not influenced by year. Among the legumes red clover (Trifolium pratense) had high concentrations of Co, Cu and Zn, white clover (Trifolium repens) of Mn and Fe, lucerne (Medicago sativa) of Se and lotus (Lotus corniculatus) of Co, Mn, Zn and Fe. Among the grasses perennial ryegrass (Lolium perenne) generally had the highest concentrations of all the micro-minerals. Hybrid ryegrass (Lolium hybridum) had slightly lower concentrations than perennial ryegrass for all minerals. Meadow fescue (Festuca pratensis) had lower concentrations still, and timothy (Phleum pratense) had, with the exception of Zn, the lowest concentrations. In general, the mineral concentrations were higher in summer than in spring growth. During the growth Cu, Zn and Fe concentrations decreased, whereas Co, Se and Mg were unaffected. It was concluded that a mixture of red clover and perennial ryegrass had the best profile of micro-minerals for cattle feeding.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:micro minerals, grassland species
Subjects: Crop husbandry > Production systems > Pasture and forage crops
Research affiliation: Denmark > DARCOF III (2005-2010) > ECOVIT - Improved health in organic milk production
ISBN:978-3-86944-021-7
Deposited By: Søegaard, Senior scientist Karen
ID Code:17831
Deposited On:07 Oct 2010 08:38
Last Modified:07 Oct 2010 08:38
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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