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Pijlman MSc, J., S. Koopmans, G. de Haan, F. Lenssinck, K.M. van Houwelingen, J.P.M. Sanders, J.G.C. Deru, J.W. Erisman. 2018. Effect of feeding the grass fibrous fraction obtained from biorefinery on N ans P utilisation of dairy cows. p. 431-433. In: 20th Nitrogen Workshop: "Coupling C-N-P-S cycles". Rennes, France. 25-27 June 2018.

Aantal pagina's: 3

Soort document: Conference Proceedings

Download full text pdf, 350 kB; opent in nieuw venster

Meer over auteurs/freelancers verbonden aan het LBI :
Ir. Joachim G.C. Deru;
Prof. Dr. Ing. J. W. Erisman;
Jeroen Pijlman


Taal van het document: Engels

Title in English: Effect of feeding the grass fibrous fraction obtained from biorefinery on N ans P utilisation of dairy cows

Abstract / summary in English:

Biomass produced by intensively managed dairy grasslands on peat soils generally contains higher amounts of N and P than biomass from mineral soils, due to the relative high organic matter mineralisation under oxic soil conditions. Consequently, if these higher amounts are not compensated for in the ration by adding lower N and P feed components, dairy cows receive a dietary surplus of N and P which in turn leads to higher on farm N and P surpluses compared to farms on mineral soils. The fibrous fraction of grass obtained from biorefinery, being less concentrated in N and P than unrefined grass silage, improved dairy cow dietary N and P utilisation without affecting milk production. Biorefinery could be used as tool to reduce environmental N and P loads of dairy farms, especially in situations where diets are grass based and grass biomass is relatively rich in N and P, such as in a dairy farming system on peat soils.


Keywords in English: grass, peat, biorefinery, nitrogen, phosphorus, dairy cows
Effect of feeding the grass fibrous fraction obtained from biorefinery on N ans P utilisation of dairy cows