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Innovative and practical management approaches to reduce nitrogen excretion by ruminants

Objective

Dairying is an important sector of EU agriculture, but intensification has been accompanied by an increase in N surplus. This has a negative environmental impact on groundwater (pollution with nitrates), surface water (eutrophication) and on the atmosphere (de-nitrification and ammonia volatilisation). The EU seeks to stimulate measures that improve management of nutrients, waste and water as a start to move to management practices beyond “usual good-farming practice”. The objective of REDNEX is to develop innovative and practical management approaches for dairy cows that reduce nitrogen excretion into the environment through the optimization of rumen function, an improved understanding and prediction of dietary nitrogen utilization for milk production and excretion in urine and faeces. Novel tools for monitoring these processes and predicting the consequences in terms of N losses on–farm will be developed. At the centre of the project is a detailed mathematical model of N utilization by the cow which will act to integrate results from previous work and from new research carried out in the project. This interlinked research aims to improve the supply of amino acids to be absorbed relative to the quantity and quality of amino acids and carbohydrates in feed allowing a reduction in N intake. Research to understand amino acid absorption, intermediary utilization and the processes involved in the transfer of urea N from blood to the gastro-intestinal tract will further underpin model development and indicate strategies to reduce N losses. To predict N losses on-farm and the impact on profitability, a harmonised applied model will be derived from the mechanistic model and will be supported by tools to better describe feeds and biomarkers to indicate N status. Impact of the research will be enabled by dissemination and knowledge interaction using a participatory approach to include the views of stakeholders and recognition of the need to provide support to EU neighbours.

Field of science

  • /natural sciences/mathematics/applied mathematics/mathematical model
  • /natural sciences/chemical sciences/inorganic chemistry/inorganic compounds
  • /natural sciences/biological sciences/biochemistry/biomolecules/carbohydrates
  • /natural sciences/chemical sciences/organic chemistry/amines
  • /agricultural sciences/agriculture, forestry, and fisheries
  • /agricultural sciences/agriculture, forestry, and fisheries/agriculture
  • /agricultural sciences/animal and dairy science/dairy
  • /natural sciences/earth and related environmental sciences/environmental sciences/pollution

Call for proposal

FP7-KBBE-2007-1
See other projects for this call

Funding Scheme

CP-IP - Large-scale integrating project

Coordinator

STICHTING WAGENINGEN RESEARCH
Address
Droevendaalsesteeg 4
6708 PB Wageningen
Netherlands
Activity type
Research Organisations
EU contribution
€ 492 989
Administrative Contact
Boudewijn Kroes (Mr.)

Participants (10)

INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONNEMENT
France
EU contribution
€ 999 057
Address
147 Rue De L'universite
75007 Paris Cedex 07
Activity type
Research Organisations
Administrative Contact
Charles Mathiaux (Mr.)
AARHUS UNIVERSITET
Denmark
EU contribution
€ 955 281
Address
Nordre Ringgade 1
8000 Aarhus C
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Niels Kiil (Mr.)
THE UNIVERSITY OF READING
United Kingdom
EU contribution
€ 992 114
Address
Whiteknights Campus Whiteknights House
RG6 6AH Reading
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Liz Stansfield (Ms.)
ABERYSTWYTH UNIVERSITY
United Kingdom
EU contribution
€ 601 753
Address
Visualisation Centre Penglais
SY23 3BF Aberystwyth
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Simon Durbin (Mr.)
WAGENINGEN UNIVERSITY
Netherlands
EU contribution
€ 350 576
Address
Droevendaalsesteeg 4
6708 PB Wageningen
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Gerda Bakker (Ms.)
UNIVERSITEIT GENT
Belgium
EU contribution
€ 195 640
Address
Sint Pietersnieuwstraat 25
9000 Gent
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Saskia Vanden Broeck (Ms.)
UNIVERSIDAD AUTONOMA DE BARCELONA
Spain
EU contribution
€ 300 891
Address
Calle Campus Universitario Sn Cerdanyola V
08290 Cerdanyola Del Valles
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Katja Schustakowitz (Ms.)
SLOVENSKE CENTRUM POLNOHOSPODARSKEHO VYSKUMU
Slovakia
EU contribution
€ 135 105
Address
Hlohovska 2
94992 Nitra
Activity type
Research Organisations
Administrative Contact
Pavol Grácik (Dr.)
FRIEDRICH LOEFFLER INSTITUT - BUNDESFORSCHUNGSINSTITUT FUER TIERGESUNDHEIT
Germany
EU contribution
€ 112 120
Address
Sudufer 10
17493 Greifswald-insel Riems
Activity type
Research Organisations
Administrative Contact
Petra Wutzo (Ms.)
FEDERAZIONE EUROPEA DI ZOOTECNICA
Italy
EU contribution
€ 414 474
Address
Via Giuseppe Tomassetti 3 A/1
00161 Roma
Activity type
Other
Administrative Contact
Andrea Rosati (Dr.)