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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Syntheserapport Voedselverspilling bij huishoudens in Nederland in 2019
Ooijendijk, T. ; Janmaat, O. ; Soethoudt, J.M. ; Snoek, J. ; Palland, K. ; Dooren, C. van; Schrijnen, M. ; Huigens, M. - \ 2019
Den Haag : Stichting Voedingscentrum Nederland
food wastage - consumers - consumer behaviour - food wastes
Beïnvloeding van de ammoniakemissie uit melkveestallen met roostervloer door beweiding : onderzoek op Dairy Campus
Dooren, H.J.C. van; Ogink, N.W.M. ; Riel, J.W. van; Mosquera, J. ; Zonderland, J.L. - \ 2019
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 1130) - 39
Tijdens beweiding van melkvee verlaten de dieren de stal. Dit beïnvloedt de ammoniakemissie uit de stal. Bij terugkeer van de dieren in de stal neemt de ammoniakemissie weer snel toe. In totaal heeft beweiding een reducerend effect op de ammoniakemissie per dierplaats per jaar dat afhangt van snelheid waarmee de ammoniakemissie afneemt en weer toeneemt. Metingen op Dairy Campus laten zien dat de afname van de ammoniakemissie langzamer gaat dan tot nu toe gedacht. Op basis van deze resultaten is het beweidingseffect kleiner dan tot nu toe aangenomen, namelijk 2% in plaats van 5% bij 720 uur weidegang per jaar. Het beweidingseffect kan weer vergroot worden door meer dagen per jaar of meer uren per dag te weiden of aanvullende maatregelen te nemen die de emissie verder verlagen (bijvoorbeeld gebruik van water of beperking van de ventilatie tijdens beweiding). De geldigheid van de resultaten voor de bredere praktijk moet nog verder onderzocht worden.
Ammoniakemissie tijdens frequent mixen van drijfmestmet lucht : Onderzoek op Dairy Campus
Dooren, H.J.C. van; Bokma, S. ; Ogink, N.W.M. - \ 2019
Wageningen : Wageningen Livestock Research (Rapport / Wageningen Livestock Research 1170) - 22
Four experiments have been conducted between 2016 and 2018 at Dairy Campus in Leeuwarden, The Netherlands with the aim to measure the effect of daily mixing of dairy slurry on the emission of ammonia. Daily mixing of slurry either with air pumped into the slurry or with an electrical mixer did not result in reduction of ammonia emission. The assumption that preventing a crust to be formed on top of the slurry by frequent mixing would reduce ammonia emission was not supported by the results found the emission measurements units at Dairy Campus (The Netherlands) in four experiments.
Project 5: Effect van dichte vloeren op de emissie van broeikasgassen uit een melkveestal
Dooren, H.J.C. van - \ 2019
Wageningen : Wageningen University & Research - 1 p.
Project 6: Effect van het frequent mixen van mest op de emissie van broeikasgassen uit een melkveestal
Dooren, H.J.C. van - \ 2019
Wageningen : Wageningen University & Research - 1 p.
Ammonia and odour emission from a veal calves housing system with V-shaped manure belt and ‘Groene Vlag’ slatted floor
Mosquera, J. ; Hattum, T. van; Nijeboer, G.M. ; Hol, J.M.G. ; Dooren, H.J.C. van; Bokma, S. - \ 2019
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research report 1171) - 30
This report presents the results of measurements performed at one animal facility for veal calves using the control-case approach, to estimate the ammonia and odour emission reduction of a floor (Groene Vlag) combined with a V-shaped manure belt under the floor compared to the traditional wooden slatted floor. These measurements were commissioned by Bettink Service Team and by Beerepoot Stalinrichtingen BV. Ammonia emissions were significantly lower (53%) than the emission from the traditional floor measured simultaneously within the same farm (case-control approach). Odour emissions were significantly lower (47%) than the emission from the traditional floor measured simultaneously within the same farm (case-control approach).
Gasvormige emissies uit vrijloopstallen met houtsnipperbodems : ammoniak-, lachgas- en methaanemissie op stalniveau
Dooren, H.J.C. van; Hol, J.M.G. ; Blanken, K. ; Galama, P.J. - \ 2019
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 1163) - 46
Measurements of emission of ammonia, methane and laughing gas from compost bedded pack barnsfor dairy cows are presented. Ammonia emission was reduced by 31% but methane emissionincreased by 34% and emission of laughing gas were 14 times higher than a references slurry based housing system.
Ammoniakemissie
Dooren, H.J.C. van; Mosquera Losada, J. ; Bokma, S. ; Groenestein, C.M. - \ 2018
Wageningen : Wageningen Livestock Research - 5 p.
animal welfare - animal production - dairy cattle - animal housing - environment - emission - teaching materials - intermediate vocational training
Door onderzoekers van Wageningen Livestock Research is het belang aangegeven om de emissie van ammoniak terug te dringen en zijn oplossingsrichtingen aangegeven. De volgende thema’s worden toegelicht: 1.Ammoniakproblematiek 2.Meten ammoniakemissie in stal 3.Oplossingsrichtingen verminderen emissie
Effect Of Grazing On Ammonia Emission From Dairy Housing With Slatted Floor
Dooren, H.J.C. van; Ogink, N.W.M. ; Riel, J.W. van; Mosquera Losada, J. - \ 2018
Unsustainable dietary habits of specific subgroups require dedicated transition strategies : Evidence from the Netherlands
Dooren, C. van; Keuchenius, C. ; Vries, J.H.M. de; Boer, J. de; Aiking, H. - \ 2018
Food Policy 79 (2018). - ISSN 0306-9192 - p. 44 - 57.
Consumer research - Diet-quality scores - Greenhouse gas emissions - Sustainable diets - Transition strategies

This paper aims to identify changes in food group consumption that may improve both health and sustainability scores of low-scoring population subgroups. As a case study, we assessed the impacts of the diets of a representative sample of Dutch consumers (age 18–75 y, n = 1242). The health impact of their diets was assessed using the Dutch Healthy Diet-index (DHD) and the environmental impact by greenhouse gas emissions (GHGEs). As expected, a significant negative correlation was found between DHD and the GHGEs, indicating that health and sustainability can, to some extent, be improved in synergy with one another. Looking at population subgroups, (young) employed males were identified as an important target group (lowest DHD and highest GHGEs). Four food groups and energy were observed of which a reduced intake makes a diet healthier and more environmentally sustainable: meat, energy, cheese, snacks (cakes, pastry, biscuits, salted and fried snacks, potato chips), and alcohol. Besides, three food groups were observed of which an increased intake makes a diet healthier, but less environmentally sustainable when they do not replace other food groups: fruit, fish, and vegetables. Based on real-life differences in dietary patterns, four transition strategies were formulated that can raise the DHD and lower GHGEs: (I) Replacing snacks with fruit, especially between meals, (II) Replacing cheese with vegetables, during lunch as well as dinner, (III) Partly replacing meat with fish, (IV) Lowering the total energy intake, through reducing the consumption of alcoholic drinks. If deriving the highest environmental gain is the purpose of dietary adjustment, then halving the portions of meat consumed is a strategy (V). Actual unsustainable diet practices of specific subgroups require dedicated transition strategies. The study provides insights into the opportunities for improving both health and environmental sustainability scores of different population subgroups and underlines that these cannot be successfully achieved by adopting a single strategy.

Landschapsarchitectuur : tussen ontwerp & onderzoek
Nijhuis, Steffen ; Niederer, Danielle ; Bekker, Joeri de; Berkers, Marieke ; Dooren, Noël van; Eker, Mark ; Horlings, Harma ; Janssen, Joks ; Kersten, Inge ; Tilborg, Hank van; Lenzholzer, Sandra ; Maaskant, Madeleine ; Meijer, Jan Herman ; Noordhuizen, Jorrit ; Nijkrake, Wieteke ; Noortman, Adrian ; Vries, Jeroen de; Vlug, Johan ; Stolk, Egbert ; Veenstra, Abe - \ 2017
Wageningen : Dutch School of Landscape Architecture (Dutch School of Landscape Architecture perspectieven vol. 1) - 120
Overzicht van maatregelen om de ammoniakemissie uit de veehouderij te beperken : Geactualiseerde versie 2017
Mosquera, J. ; Aarnink, A.J.A. ; Ellen, H. ; Dooren, H.J.C. van; Emous, R.A. van; Harn, J. van; Ogink, N.W.M. - \ 2017
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 645) - 75
This report gives an overview of measures to reduce ammonia emissions from livestock farming systems. In addition to existing housing measures (as published in the Rav), other (not yet approved in the Rav) housing measures, as well as feed and management measures are discussed. This document focusses on the animal categories cattle (dairy cattle and veal calves), pigs (farrowing sows, piglets, fattening pigs, sows and her piglets) and poultry (laying hens, broiler chickens, broiler breeders).
Vermindering van ammoniakemissie door voermaatregelen bij melkvee : Experimenteel onderzoek op Dairy Campus
Dooren, H.J.C. van; Klop, A. ; Riel, J.W. van; Zonderland, J.L. ; Šebek, L.B.W. ; Ogink, N.W.M. - \ 2017
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 1052) - 43
Effect of floor type on the ammonia and odour emission from veal calves housing
Mosquera, J. ; Hattum, T. van; Dooren, H.J.C. van; Bokma, S. - \ 2017
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research report 980) - 40
Effect of Comfort Slat Mats with and without valves on ammonia emission from dairy housing : case control measurements at Dairy Campus Leeuwarden
Dooren, H.J.C. van; Zonderland, J.L. ; Blanken, K. ; Bokma, S. - \ 2016
Wageningen : Wageningen UR Livestock Research (Livestock Research report 1028) - 22
dairy cattle - dairy farming - cattle housing - floor type - valves - ammonia emission - emission reduction - melkvee - melkveehouderij - huisvesting van rundvee - vloertypen - kleppen - ammoniakemissie - emissiereductie
Towards a new measurement method for urine puddle volume in dairy cow houses using fluorescense
Dooren, H.J.C. van; Top, H. van den; Helderman, F. ; Jalink, H. ; Schoor, R. van den; Ogink, N.W.M. - \ 2016
- 6 p.
Drainage of urine from concrete floors in dairy housing reduces the ammonia emission. Surface area of a urine puddle and puddle depth are among the five most determining parameters predicting ammonia emission. However a validated
method to estimate the amount of urine present on the floor at any time to characterize the drainage process of urine in practice is lacking. We propose a new method to estimate puddle volume based on measuring intensity of emitted light from a simulated urine puddle with a known concentration of soluble fluorescing tracer after exposure with light of an appropriate wavelength. To develop this new method an installation was constructed consisting of blue and white LED lights, a 1.4 MP 14-bit CCD camera and different filters. Calibrations of pixel size and flat field corrections were performed. Essential for this approach is an accurate calibration line between the amount of tracer and the intensity of emitted fluorescence light for use in field measurements. Objective of the research presented here was to establish a calibration line for different combinations of tracer concentration and layer thicknesses under controlled conditions. According to theoretical background a linear relationship between amount of a fluorescence tracer present and the fluorescence light intensity could be established.
We testen stalvloeren en toevoegmiddelen
Dooren, Hendrik Jan van; Winkel, Albert - \ 2016
Effect van strooiselverwijdering bij leghennen in volièrehuisvesting op de emissie van ammoniak, geur, broeikasgassen en fijnstof
Mosquera, J. ; Emous, R. van; Hattum, Theo van; Nijeboer, G. ; Hol, J.M.G. ; Dooren, H.J. van; Ogink, N.W.M. - \ 2016
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 995) - 69
dierenwelzijn - dierlijke productie - pluimvee - hennen - huisvesting, dieren - diergezondheid - animal welfare - animal production - poultry - hens - animal housing - animal health
This report summarizes the results of measurements performed in the framework of the programmatic Approach nitrogen (PAS) to determine the effect of removing litter from livestock housing of laying hens (to maintain a thin layer of litter in the animal building) on the emission of ammonia, fine dust, odour and greenhouse gases (methane, nitrous oxide). Removing the litter led to significantly lower emissions of NH3 and PM10 (on average 20-22% lower emissions). Although in seven of all nine measurements removing the litter resulted in lower odour emissions (~25% emission reduction), no significant effect was found of removing the litter on odour removal. For CH4 and N2O, removing litter did not result in significantly lower emissions. When a thin litter layer (less than 2-3 cm) can be maintained, a reduction of 25-35% in NH3 and PM10 emissions may be achieved.
On farm development of bedded pack dairy barns in The Netherlands : gaseous emissions bedding
Dooren, H.J.C. van; Galama, P.J. ; Blanken, K. - \ 2016
Wageningen : Wageningen Livestock Research (Wageningen Livestock Research report 710) - 19
Onderzoek naar het effect van ACNV op de ammoniakemissie bij melkveestallen
Mosquera, J. ; Hol, J.M.G. ; Huis in ’t Veld, J.W.H. ; Dooren, H.J.C. van; Ogink, N.W.M. - \ 2016
Wageningen : Wageningen Livestock Research (Livestock Research rapport 982) - 37
In dit rapport worden de resultaten gepresenteerd van metingen die in het kader van de Programmatische Aanpak Stikstof (PAS) door Wageningen UR Livestock Research op twee melkveebedrijven zijn uitgevoerd om het effect van ACNV (Automatische Controle Natuurlijke Ventilatie) op de ammoniakemissie te bepalen. De ammoniakemissies bij gebruik van het ACNV systeem (ACNV aan) week niet aantoonbaar af van de emissie bij regulier ventilatiemanagement.
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