Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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De relatieve duurzaamheid van de Nederlandse roodvleessector: een kwalitatieve vergelijking = A comparative study on the sustainability of the Dutch beef cattle production sector
Bos, A.P. - \ 2015
Wageningen : Wageningen UR Livestock Research (Livestock Research rapport 841) - 68
duurzame veehouderij - vleesvee - vee- en vleesindustrie - nederland - ierse republiek - brazilië - varkenshouderij - pluimveehouderij - internationale vergelijkingen - vergelijkend onderzoek - veehouderij - sustainable animal husbandry - beef cattle - meat and livestock industry - netherlands - irish republic - brazil - pig farming - poultry farming - international comparisons - comparative research - livestock farming
In this study the sustainability of Dutch specialized beef production is compared qualitatively with two other Dutch animal production systems (porc and broilers), and with beef production in Ireland and Brazil, the most prominent exporters of beef to the Dutch market with which the Dutch sector competes. The comparison is done along twelve of the fifteen long-term ambitions of the Dutch governance network ‘Uitvoeringsagenda Duurzame Veehouderij’.
The potential of genomic selection to support local breed conservation
Calus, Mario - \ 2014
animal breeding - genotypes - phenotypes - genetic variance - genomics - genetic correlation - irish republic - beef cows - animal genetic resources - breeds
Amazing grazing : 20 video's over melkveehouderij en beweiding in Ierland
Livestock Research, - \ 2013
YouTube
melkveehouderij - huisvesting van koeien - weiden - begrazing - dierenwelzijn - beweidingssystemen - graslandbeheer - ierse republiek - dairy farming - cow housing - pastures - grazing - animal welfare - grazing systems - grassland management - irish republic
Twintig video's over melkveehouderij en beweiding in Ierland.
Stof tot nadenken uit Ierland
Galama, Paul - \ 2013
grazing - farm management - farming systems - livestock farming - irish republic
Ierland en Frankrijk: wat doen ze er anders?
Aarts, H.F.M. ; Haan, M.H.A. de - \ 2011
V-focus 8 (2011)4. - ISSN 1574-1575 - p. 36 - 37.
melkveehouderij - agrarische bedrijfsvoering - bedrijfsvergelijking in de landbouw - ierse republiek - frankrijk - noordwest-europa - dairy farming - farm management - farm comparisons - irish republic - france - northwestern europe
In het Europese project Dairyman werken belangrijke melkveegebieden in Noordwest-Europa samen aan de gewenste ontwikkeling van hun melkveebedrijven. Dit gebeurt op een vergelijkbare manier als in het mineralenproject Koeien & Kansen. Door deze samenwerking komt extra kennis beschikbaar en is vergelijking mogelijk, wat leerzaam is. Wat doen ze in het buitenland anders dan wij en waarom? Een kijkje op het melkveebedrijf in Ierland en West-Frankrijk.
Growing grass for a green biorefinery - an option for Ireland?
O'Keeffe, S. ; Schulte, R.P.O. ; O'Kiely, P. ; O'Donoghue, C. ; Lalor, S.T.J. ; Struik, P.C. - \ 2010
T Research : research and innovation news at Teagasc 5 (2010)4. - ISSN 1649-8917 - p. 10 - 11.
biobased economy - economische haalbaarheid - graslanden - ierse republiek - bioraffinage - economic viability - grasslands - irish republic - biorefinery
Growing grass for a green biorefinery – an option for Ireland? Mind the gap: deciphering the gap between good intentions and healthy eating behaviour Halting biodiversity loss by 2020 – implications for agriculture A milk processing sector model for Ireland
Alternative use of grassland biomass for biorefinery in Ireland: a scoping study
O'Keeffe, S. - \ 2010
Wageningen University. Promotor(en): Paul Struik, co-promotor(en): R.P.O. Schulte; P. O'Kiely. - S.l. : s.n. - ISBN 9789085858096 - 202
graslanden - weiden - biomassa productie - kuilvoerbereiding - veehouderij - ierse republiek - bioraffinage - biobased economy - grasslands - pastures - biomass production - silage making - livestock farming - irish republic - biorefinery
The need to reduce greenhouse gas emissions and dependency on fossil fuels has been one of the main driving forces to use renewable resources for energy and chemicals. The integrated use of grassland biomass for the production of chemicals and energy, also known as Green Biorefinery (GBR), has received much attention and several European countries have developed GBR systems, including Austria, Denmark and Germany. In Ireland, approximately 90% of the 4.3 million hectares used for agriculture is under grassland and used in livestock production systems. Recently livestock numbers have declined and a surplus of grass biomass is predicted. GBR has potential to provide supplementary income from this surplus grass. As part of a scoping study, I assessed the economic, technical and environmental feasibility of a GBR in an Irish context, and developed a blueprint for a first generation GBR.
Scenario analyses suggested that the ideal catchment area for a GBR was 700-800 ha depending on biomass availability within the catchment area, and the availability should be in excess of 30% in order to contain transport costs. An added benefit of a decentralised GBR facility processing approx. 0.8 t of dry matter per hour is that it allows for ease of operation, and better knowledge of the source and quality of the herbage being supplied.
The viability of a GBR will be highest in areas which experience declining numbers of livestock and lower farm income, particularly. This mainly, but not exclusively, occurs in areas with many beef farms. These areas have a high potential availability of surplus grass biomass and in such a situation the GBR would not have to compete with traditional agricultural commodities, but rather would provide potential supplementary income to farmers.
The transitional development of a GBR system is likely to be most successful if current harvesting practices (i.e. a two-cut silage system) are adopted. The quality of the biomass from such a harvesting system is compatible with the basic GBR technologies used to produce insulation materials and proteinaceous products for animal feed. In the longer-term, higher value products could be produced by retro-fitting the GBR facility. Analyses also showed that feedstock quality can be best controlled by operating a silage-only system, with on-site ensiling of the grass material at the GBR facility. The use of silage as a feedstock also facilitates year-round operation of the GBR facility.
Biorefinery processes are energy intensive. Therefore, the viability of the GBR largely depends on self–sufficiency for energy. This can be achieved by anaerobic digestion of the fibre slurries that remain after processing.
The residual material remaining after the anaerobic digestion can be used as fertiliser on the farm supplying the biomass, as part of a “waste management strategy” that aims to maintain nutrient balance between the GBR and the source farms. This recycling will reduce direct costs of the supplying farms.
The blueprint outlined in this thesis provides a framework for the development of a first generation GBR. The blueprint has also identified key areas that require further research: improved ensiling techniques, integration of livestock farming systems and GBR systems, and nutrient budgeting of the GBR system.
Ierland, Europees kostprijskampioen
Haan, M.H.A. de; Zijlstra, J. ; Vrolijk, M. ; Rijpma, J. - \ 2009
V-focus 6 (2009)5. - ISSN 1574-1575 - p. 27 - 29.
melkveehouderij - agrarische bedrijfsvoering - conferenties - ierse republiek - dairy farming - farm management - conferences - irish republic
Eind juni was het EDF-congres in Cork, Ierland. EDF is een internationale organisatie van melkveehouders uit heel Europa die gegevens, ervaringen en kennis uitwisselen. De lage melkprijs was natuurlijk een belangrijk gespreksonderwerp. Verder leerden melkveehouders uit heel Europa hoe de Ieren hun kostprijs zo laag kunnen houden
Soak systems of an Irish raised bog : a multidisiciplinary study of their origin, ecology, conservation and restoration
Crushell, P.H. - \ 2008
Wageningen University. Promotor(en): Matthijs Schouten; J.G.M. Roelofs. - S.l. : S.n. - ISBN 9789085852544 - 200
veenmoerassen - vegetatie - conservering - ecologie - ierse republiek - geschiedenis - ecologisch herstel - historische ecologie - natuurgebieden - herstelbeheer - bogs - vegetation - conservation - ecology - irish republic - history - ecological restoration - historical ecology - natural areas - restoration management
Soak systemen (systemen met een laagveenvegetatie omgeven door ombrotroof veen), kortweg soaks, zijn zeldzame elementen in hoogvenen die bijdragen aan de heterogeniteit van deze ecosystemen. Ze worden beschouwd als belangrijke elementen in het hoogveen die behouden en hersteld dienen te worden. Teneinde meer inzicht te krijgen in soak systemen, hebben wij historisch, biogeochemisch en ecologisch onderzoek verricht aan twee soaks in Clara bog
Inventory of Irish vegetation data collected by Dutch researchers
Kruijt, D. ; Hennekens, S.M. ; Schaminée, J.H.J. - \ 2007
Nijmegen : Radboud Universiteit - 20
vegetatie - inventarisaties - karteringen - databanken - ierse republiek - vegetatiekartering - vegetation - inventories - surveys - databases - irish republic - vegetation mapping
Subsidence of Clara Bog West and acrotelm development of Raheenmore Bog and Clara Bog East
Heggeler, M.M.A. ; Ploeg, M.J. van der; Vuurens, S.H. ; Schaaf, S. van der - \ 2005
Wageningen : Sub-department Water Resources (Rapport / Wageningen University, Department of Environmental Sciences, Sub-Department Water Resources 121) - 74
hoogveengronden - veengronden - drainage - grondwaterspiegel - bodemdaling - ierse republiek - hydrologie - grondwater - ecohydrologie - bog soils - peat soils - water table - subsidence - irish republic - hydrology - groundwater - ecohydrology
Results industry questionnaire SEAFOODsense
Schelvis-Smit, A.A.M. ; Veldman, M. ; Hyldig, G. ; Green-Petersen, D. ; Sveinsdottir, K. ; Martinsdottir, E. ; Ruth, S.M. van; Fayoux, S. - \ 2005
IJmuiden : RIVO (Report / RIVO-Netherlands Institute for Fisheries Research no. C017/05) - 16
sensorische evaluatie - methodologie - kwaliteit - voedselkwaliteit - zeevruchten - interviews - ierse republiek - ijsland - denemarken - nederland - sensory evaluation - methodology - quality - food quality - seafoods - irish republic - iceland - denmark - netherlands
The aim of this research was to define sensory quality, and determine how this can be measured, at each point where quality decision-making is carried out in the chain of seafood handling from catch or slaughter to consumer. This was carried out by taking interviews with the industry to obtain knowledge about their sensory quality evaluation procedures and the descriptive terms they used. In four different countries, Ireland, Iceland, Denmark and The Netherlands, 8-17 companies throughout the fish production chain were selected.
Expansion of invasive species on ombrotrophic bogs: desiccation or high N deposition?
Tomassen, H.B.M. ; Smolders, A.J.P. ; Limpens, J. ; Lamers, L.P.M. ; Roelofs, J.G.M. - \ 2004
Journal of Applied Ecology 41 (2004)1. - ISSN 0021-8901 - p. 139 - 150.
veenmoerassen - invasies - planten - stikstof - verdroging - veengronden - luchtverontreiniging - fosfor - drainage - betula pubescens - cladonia - molinia caerulea - sphagnum - nederland - ierse republiek - bogs - invasions - plants - nitrogen - desiccation - peat soils - air pollution - phosphorus - netherlands - irish republic - atmospheric nitrogen deposition - caerulea l moench - vulgaris l hull - calluna-vulgaris - molinia-caerulea - nutrient availability - cladonia-portentosa - vascular plants - growth
1. In many ombrotrophic bog areas the invasion of grass (e.g. Molinia caerulea) and tree (e.g. Betula pubescens) species has become a major problem. We investigated whether the invasion of such species is due to high atmospheric nitrogen (N) deposition by conducting a fertilization experiment. 2. The effects of experimentally increased N input on Molinia, Betula and Eriophorum vaginatum were studied in desiccated bog vegetation in Ireland, where there is relatively low background N deposition. Four different N treatments were applied for 3 years: 0 (control), 2, 4 and 8 g m-2 year-1. 3. Ammonium and nitrate concentrations in the peat moisture increased at high N addition rates, leading to significantly higher carbon : nitrogen (C : N) and nitrogen : phosphorus (N : P) ratios in the top layer of the peat. The potential CO2 production rate of the peat was not stimulated at high N addition rates due to severe acidification of the peat. 4. Despite high tissue N : P ratios (above 40), above-ground biomass production by Molinia was stimulated at high N addition rates, and foliar nutrient concentrations were unaffected. In contrast to Molinia, Betula and Eriophorum were unable to increase their above-ground biomass, probably due to P limitation. Regrowth of the lichen Cladonia portentosa was suppressed at high N addition rates. 5. Synthesis and applications. We conclude that the invasion of bogs by Molinia and Betula is likely to be less affected by desiccation than by increased N availability. Apparently, Molinia is well adapted to P-limiting conditions, which may explain its success in regions with increased N deposition levels. The high availability of P in many Dutch bogs compared with Irish bogs, together with prolonged high N deposition levels, may explain the strong increase in both Molinia and Betula observed in the Netherlands. As long as N and P availabilities in Dutch bogs are too high to prevent invasion of Betula and/or Molinia, management measures stimulating growth of Sphagnum mosses could probably reduce the negative effects of high N deposition levels.
Relationships between ecotopes, hydrological position and subsidence on Clara Bog and Raheenmore Bog (Ireland)
Schaaf, S. van der; Streefkerk, J.G. - \ 2003
In: Measurement techniques and data assessment in wetlands hydrology / Ignar, S., Nowakowski, P., Okruszko, T., Warsaw : Warsaw Agricultural University Press - ISBN 8372444862 - p. 127 - 136.
veenmoerassen - veengronden - landschapsecologie - hydrologie - wetlands - ierse republiek - bogs - peat soils - landscape ecology - hydrology - irish republic
During the final stage of the Irish-Dutch raised bog study (1989-2001) an effort was made to integrate aspects of vegetation, water quality and hydrology. The basic ecological concept used was the ecotope rather than the plant community. This paper describes the two bogs, the ecotypes, followed by hydrological concepts. Afterwards relationships are developed and discussed
Relationships between biotic and abiotic conditions on Clara Bog (Ireland)
Schaaf, S. van der; Streefkerk, J.G. - \ 2003
In: Ecohydrological processes in Northern wetlands / Järvet, A., Lode, E., [S.l.] : S.n. - p. 35 - 40.
veenmoerassen - veengronden - hydrologie - ierse republiek - ecohydrologie - bogs - peat soils - hydrology - irish republic - ecohydrology
During the final stage of the Irish-Dutch raised bog study (1989-2001) an effort was made to integrate aspects of vegetation, water quality and hydrology
Acrotelm development on Raheenmore Bog (Ireland)
Ploeg, M.J. van der; Heggeler, M.M.A. ; Schaaf, S. van der; Vuurens, S.H. - \ 2003
In: Ecohydrological processes in Northern wetlands. - [S.l.] : S.n. - p. 99 - 104.
veenmoerassen - bodemwater - drainage - hellingen - hydrologie - ierse republiek - bogs - soil water - hydrology - slopes - irish republic
Subsidence on Clara Bog (Ireland) related to water level management in surrounding areas
Heggeler, M.M.A. ; Ploeg, M.J. van der; Schaaf, S. van der; Vuurens, S.H. - \ 2003
In: Ecohydrological processes in Northern wetlands / Järvet, A., Lode, E., [S.l.] : S.n. - p. 266 - 273.
veenmoerassen - veengronden - bodemwater - grondwaterspiegel - bodemdaling - waterbeheer - ierse republiek - waterstand - bogs - peat soils - soil water - water table - subsidence - water management - irish republic - water level
Bog hydrology
Schaaf, S. van der - \ 2002
In: Conservation and restoration of raised bogs / Schouten, M.G.C., Dublin : Dept. of the Env. and Local Government; Staatsbosbeheer - ISBN 0755715594 - p. 54 - 109.
veengronden - veenmoerassen - bodemwater - hydrologie - ierse republiek - monitoring - waterstand - peat soils - bogs - soil water - hydrology - irish republic - water level
In this chapter results of the hydrological fieldwork on Raheenmore Bog and Clara Bog are presented and discussed
Regional hydrology
Schaaf, S. van der; Streefkerk, J.G. ; Daly, D. ; Johnston, P. - \ 2002
In: Conservation and restoration of raised bogs / Schouten, M.G.C., Dublin : Dept. of the Env. and Local Government; Staatsbosbeheer - ISBN 0755715594 - p. 32 - 53.
veenmoerassen - veengronden - hydrologie - ierse republiek - bogs - peat soils - hydrology - irish republic
The main topic of this chapter is the regional hydrology of Clara Bog
Vegetation
Kelly, L. ; Schouten, M.G.C. - \ 2002
In: Conservation and restoration of raised bogs: geological, hydrological and ecological studies / Schouten, M.G.C., Dublin : The Government Stationary Office - ISBN 9780755715596 - p. 102 - 154.
vegetatie - ierse republiek - veenmoerassen - bodemwater - grondwaterspiegel - waterkwaliteit - ecohydrologie - bogs - vegetation - soil water - water table - water quality - irish republic - ecohydrology
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