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Jan-Paul Wagenaar

Jan-Paul Wagenaar MSc

Managing Director Department of Agriculture

T: +31(0)343 523860 (General)

 

Publication(s) by Wagenaar
Articles in scientific journals (10)
Proceedings etc. (27)
Brochures, books & reports (19)
Specialist journal articles, leaflets, newsletters, etc (53)

Scientific publications

Presence of avian influenza risk birds in and around poultry free-range areas in relation to range vegetation and openness of surrounding landscape
Bestman, M.W.P., W. de Jong, J. Wagenaar and T. Weerts. 2017. Presence of avian influenza risk birds in and around poultry free-range areas in relation to range vegetation and openness of surrounding landscape. Agroforest Syst.
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Health and Welfare in Dutch Organic Laying Hens
Bestman, M.W.P. and J. Wagenaar. 2014. Health and Welfare in Dutch Organic Laying Hens. Animals. 4(2):374-390.
DOI: 10.3390/ani4020374
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The prevention and control of feather pecking: application to commercial systems
Nicol, C.J., M.W.P. Bestman, A. Gilani, M. de Haas, I.C. Jong, S. Lambton, J. Wagenaar, C.A. Weeks and T.B. Rodenburg. 2013. The prevention and control of feather pecking: application to commercial systems. World's Poultry Science Journal. 69:775-787.
DOI: 10.1017/S0043933913000809
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The prevention and control of feather pecking in laying hens: identifying the underlying principles
Rodenburg, T.B., M. van Krimpen, I.C. Jong, E.N. de Haas, M.S. Kops, B.J. Rietstra, R.E. Nordquist, J. Wagenaar, M.W.P. Bestman and C.J. Nicol. 2013. The prevention and control of feather pecking in laying hens: identifying the underlying principles. World's Poultry Science Journal. 69:361-373.
DOI: 10.1017/S0043933913000354
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Effect of production system, alternative treatments and calf rearing system on udder health in organic dairy cows
Wagenaar, J., P. Klocke, G. Butler, G. Smolders, J.H. Nielsen, A. Canever and C. Leifert. 2011. Effect of production system, alternative treatments and calf rearing system on udder health in organic dairy cows. NJAS - Wageningen Journal of Life Sciences. 2011(58):157-162.
DOI: 10.1016/j.njas.2011.06.001
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Bestman, M.W.P., P. Koene and J. Wagenaar. 2009. Influence of farm factors on the occurrence of feather pecking in organic reared hens and their predictability for feather pecking in the laying period. Applied Animal Behaviour Science. 121:120-125.
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Wagenaar, J. and J. Langhout. 2007. Practical implications of increasing 'natural living' through suckling systems in organic dairy calf rearing. NJAS-Wageningen Journal of Life Sciences. 4:375-386.
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Values in Organic Agriculture
Verhoog, H., E.T. Lammerts van Bueren, M. Matze, T. Baars, L.W.M. Luttikholt, J. Wagenaar, J. Langhout, M. Tiemens-Hulscher, P.C. Struik, M. Haring, J.R. Bloksma, B.G.M. Pedroli, T. van Elsen, J. van Mansvelt, J. de Wit and E.W. Baars. 2007. Values in Organic Agriculture: Speciale uitgave van NJAS / Special Edition of NJAS. NJAS-Wageningen Journal of Life Sciences.
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Langhout, J. and J. Wagenaar. 2005. Kälberaufzucht in der modernen Milchviehhaltung: Das Ermöglichen von Mutter-Kind-Verhalten verbessert das Produktionssystem und die Okonomie. freiland-tagung. 29-09-2005.
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Bestman, M.W.P. and J. Wagenaar. 2003. Farm level factors associated with feather pecking in organic laying hens. Livestock Production Science. 80:133-140.
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Proceedings etc.

Species identity important to achieve benefits of diverse grassland mixtures
Wit, J. de, N.J.M. van Eekeren, J. Wagenaar and F.W. Smeding. 2014. Species identity important to achieve benefits of diverse grassland mixtures. p. 803-806. In: 4th ISOFAR Scientific Conference. Istanbul, Turkey. 13-15 oktober 2014.
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Farm based breeding of dual purpose poultry
Nauta, W.J., G. Slingenbergh, W. Vredevoogd, J. Wagenaar and M.W.P. Bestman. 2014. Farm based breeding of dual purpose poultry: Experiences from a biodynamic poultry farm in The Netherlands. In: IFOAM Organic World Congress 2014. Istanbul, Turkey. 13-15 oktober 2014.
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Diverse grassland mixtures for higher yields and more stable sward quality
Wit, J. de, N.J.M. van Eekeren, J. Wagenaar and F.W. Smeding. 2013. Diverse grassland mixtures for higher yields and more stable sward quality. p. 180-182. In: EGF - The Role of Grasslands in a Green Future. Akureyri, Iceland. 26 June 2013.
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Health and welfare in organic laying hens in The Netherlands
Bestman, M.W.P. and J. Wagenaar. 2012. Health and welfare in organic laying hens in The Netherlands. p. 156-158. In: 2nd Organic Animal Husbandry Conference. Hamburg/Trenthorst, Germany. Sep 12-14, 2012.
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Agroforestry as the answer to some trouble with free range chickens
Bestman, M.W.P., N.J.M. van Eekeren and J. Wagenaar. 2012. Agroforestry as the answer to some trouble with free range chickens. In: European agroforestry Conference - Priorities for European Agroforestry. Brussels. October 9-10, 2012.
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Wagenaar, J. 2009. Happy Dutch organic calves: suckling systems in organic dairying in the Netherlands. p. 17-22. In: ANIPLAN workshop. 30.03-01.04.2008.
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Wagenaar, J., P. Klocke, G. Butler, A. Borsari and G. Smolders. 2009. Effect of production system, alternative treatments and calf rearing systems on udder health in dairy cows. p. 22-25. In: International Congres on Food and Nutrition & EU Quality Low-Input Food Project (Final Conference). Antalya, Turkey. 22-25 April 2009.
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Mastitis incidence and milk quality in organic dairy farms which use suckling systems in calf rearing
Wagenaar, J. 2008. Mastitis incidence and milk quality in organic dairy farms which use suckling systems in calf rearing. p. 82-85. In: Second scientific conference of the International Society of Organic Agricultural Research (ISOFAR). Modena, Italy. 18-20 June 2008.
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Wagenaar, J. and J. Langhout. 2007. Suckling systems in calf rearing in organic dairy farming in the Netherlands. In: 3 rd QLIF Congress. Hohenheim. 20-23 March 2007.
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International training and exchange - a useful instrument in knowledge and attitude dissemination
Burgt, G.J.H.M. van der and J. Wagenaar. 2007. International training and exchange - a useful instrument in knowledge and attitude dissemination. p. 444-447. In: Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). Hohenheim, Germany. 20-23 March 2007.
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Wagenaar, J., J. Langhout and M.W.P. Bestman. 2006. Potential of suckling systems in calf rearing in organic dairy farming in The Netherlands: practical implementation and liveweight development. In: 1 st IFOAM International conference on animals in organic production. Minnesota,USA. 23-23 August 2006.
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Wagenaar, J. and M.W.P. Bestman. 2006. Towards animal oriented rearing methods in organic production systems. In: International Training and Exchange workshop, QLIF project. Driebergen. 20-22 February 2006.
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Bestman, M.W.P. and J. Wagenaar. 2006. Feather pecking in organic rearing hens. In: Joint Organic Congress. Odense, Denmark. 30-31 May 2006.
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Bestman, M.W.P. and J. Wagenaar. 2006. Welfare of organic laying hens. In: the 1st IFOAM International Conference on Animals in Organic Production. Minnesota, USA. 23-25 August.
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Eekeren, N.J.M. van, J. Wagenaar and P.J. Jansonius. 2006. Mineral content of chicory (Cichorium intybus) and narrow leaf plantain (Plantago lanceolata) in grass-white clover mixtures. p. 121-123. In: Quality legume-based forage systems for contrasting environments, Final meeting. Gumpemstein, Austria.
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Iepema, G., J. Wagenaar and M.W.P. Bestman. 2006. Parasitic worms in organic laying hens. p. 518-519. In: European joint organic congress: Organic Farming and European rural development. Odense/DK. 30-31 May 2006.
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Langhout, J. and J. Wagenaar. 2006. Suckling, a natural calf rearing system for organic dairy farms. In: Joint Organic Congress. Odense, Denmark. 30-31 May 2006.
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Wit, J. de, J. Wagenaar, A. de Vries and T. Baars. 2006. Milk fatty acids in relation to feeding practices on Dutch organic farms. In: Joint Organic Congress. Odense, Denmark. 30-31 May 2006.
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Nauta, W.J., D. Roep and J. Wagenaar. 2006. Animal breeding in organic farming. In: 1st IFOAM conference on animals in organic production. Minnesota, USA. August 2006.
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Bestman, M.W.P. and J. Wagenaar. 2005. Stimulating health in organic laying hens. In: Congress on Quality of Low Input Food. Newcastle, United Kingdom. 6-9 January 2005.
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Iepema, G., J. Wagenaar and M.W.P. Bestman. 2005. Incidence of Ascaridia galli in organic laying hens. In: Should hens be kept outside? Nijmegen. 18-22 april 2005.
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Bestman, M.W.P., U. Prins and J. Wagenaar. 2005. Ökologisches Nährstoffmanagement und artgerechte Geflügelhaltung – ist der Anbau eines Bewuchses die Lösung? In: Bioland Geflügelseminar. Sachsen, Deutschland. 7-9 maart 2005.
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Eekeren, N.J.M. van, L. Bommele and J. Wagenaar. 2004. Is clover syst-nematode a problem for organic dairy farms? p. 231-234. In: Adaptation and Management of forage legumes-strategies for improved reliability in mixed swards. Ystad, Sweden. 20-22 September.
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Bestman, M.W.P., J. Wagenaar and T. Baars. 2003. Welfare assessment of organic poultry. Comparison between Animal Needs Index and feather pecking damage. In: 2nd International Workshop 'Assessment of Animal Welfare at Farm and Group Level'. Bristol, UK. 4-6 September.
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Bestman, M.W.P. and J. Wagenaar. 2002. Guiding use of outdoor run in poultry. In: IFOAM 2002.
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Bestman, M.W.P., J. Wagenaar and W.J. Nauta. 2002. Shelter in poultry outdoor runs: Posterpresentatie IFOAM 2002, Victoria, Canada. In: 14th IFOAM Organic World Congress. Victoria, Canada. 21-24 August 2002.
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Bestman, M.W.P. and J. Wagenaar. 2001. Je mehr Hühner im Auslauf, desto weniger Federpicken. In: 5th Bioland Geflugelseminar. Germany. March 2001.
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Brochures, books & reports


Van gepeperd naar gekruid grasland
Wagenaar, J., J. de Wit, A.J.T.M. Hospers-Brands, W.J.M. Cuijpers and N.J.M. van Eekeren. 2017. Van gepeperd naar gekruid grasland: Functionaliteit van kruiden in grasland. Rep. 2017‐022 LbD. Louis Bolk Instituut, Driebergen. 44 p.
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Wilde vogels in en bij kippenuitlopen in relatie tot beplanting en landschap
Bestman, M.W.P. and J. Wagenaar. 2016. Wild birds in poultry free range areas in relation to woody vegetation and landscape. (In Dutch, with English abstract.). Rep. 2015-041 LbD. Louis Bolk Instituut, Driebergen. 39 p.
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Integrale diergezondheid: beheersing van leverbot
Neijenhuis, F., J. Verkaik, C. Verwer, G. Smolders and J. Wagenaar. 2014. Integrative animal health: controlling liverfluke. (In Dutch.). Wageningen UR, Livestock Research, Lelystad. 44 p.
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Kip: het meest complexe stukje vlees- Marktmechanismen, ketenrelaties  en integrale duurzaamheid
Hin, K.J., J. Wagenaar, A.J. van der Zijpp and W.J. van der Weijden. 2013. Chicken: A complex piece of meat –market mechanisms, supply chain relations and integrated sustainability. (In Dutch.). Wetenschappelijke Raad voor Integrale Duurzame Landbouw en Voeding (RIDL&V), Zeist. 34 p.
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De waarde van agrobiodiversiteit: Vijf maatregelen  voor een beter gebruik
Wit, J. de and J. Wagenaar. 2013. The value of agrobiodiversity: Five measures for improving its use. (In Dutch.). Louis Bolk Instituut; Stichting Duinboeren, Driebergen. 20 p.
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Maatregelen t.b.v. een betere groei van opfokhennen
Wagenaar, J. and C. Verwer. 2012. Measures for the purpose of a better growth of laying hens. (In Dutch.). Rep. 2012-039 LbD. Louis Bolk Instituut, Driebergen.
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Biologisch Ondernemen Legpluimvee
Wagenaar, J., L. Janmaat, M.W.P. Bestman, F. Leenstra, M. van Krimpen, C. Verwer, M. Groot, T. van Asseldonk and R. Paardekooper. 2012. Organic business: poultry. (In Dutch.). Louis Bolk Instituut, Driebergen. 28 p.
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Verlagen van uitval bij leghennen
Niekerk, T. van, M.W.P. Bestman, J. Wagenaar and B. Reuvekamp. 2012. Reducing laying hen drop-outs. (In Dutch.). Wageningen UR Livestock Research, Lelystad. 48 p.
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Van kuiken tot kip
Niekerk, T. van, B. Reuvekamp, M.W.P. Bestman and J. Wagenaar. 2011. From chick to chicken. (In Dutch.). Wageningen UR Livestock Research, Lelystad. 35 p.
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Familiekudde State of the Art
Dixhoorn, I. van, A. Evers, A. Janssen, G. Smolders, S. Spoelstra, J. Wagenaar and C. Verwer. 2010. Familiekudde State of the Art. Rep. BioKennis Rapport 268. BioKennis. 63 p.
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Biologische leghennen: gezond, gezonder, gezondst
Bestman, M.W.P. and J. Wagenaar. 2009. Organic laying hens: healthy, healthier, healthiest. (In Dutch, with English abstract.). Rep. LD17. Louis Bolk Instituut, Driebergen. 65 p.
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Kalveren bij de koe
Wagenaar, J. and J. Langhout. 2006. Kalveren bij de koe: De natuur werkt! Rep. LV60. Louis Bolk Instituut, Driebergen. 12 p.
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Rearing calves with cows
Wagenaar, J. and J. Langhout. 2006. Rearing calves with cows: Nature works! Louis Bolk Instituut, Driebergen. 12 p.
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Wagenaar, J. and U. Prins. 2006. Voer van eigen bodem: voer-mestkringloop in de biologische pluimveesector. 16 p.
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Vries, A. de, M.W.P. Bestman and J. Wagenaar. 2006. Gebruik van kruiden bij de opfok van biggen. Louis Bolk Instituut, Driebergen. 26 p.
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Iepema, G., J. Wagenaar and M.W.P. Bestman. 2005. Parasitaire wormen bij biologische leghennen: Onderzoek naar het voorkomen van maagdarmwormen. 2 p.
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Langhout, J. and J. Wagenaar. 2004. Suckling as an alternative rearing system for replacement calves on dairy farms. Louis Bolk Instituut, Driebergen. 8 p.
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Wagenaar, J. 2003. Welk engels raaigrastype past het best bij witte klaver onder maai-weidebeheer?: Bioveem Rapport 4, Teelt Grasproef Vis/Bisschop (2000-2002). Rep. Bioveem 4. Louis Bolk Instituut, Driebergen. 14 p.
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Gehele Plant Silage (GPS): ervaringen uit de praktijk
Wagenaar, J. and J. de Wit. 2003. Gehele Plant Silage (GPS): ervaringen uit de praktijk. Louis Bolk Instituut, Driebergen.
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Specialist journal articles, newsletters, etc


Functie van kruiden in kringloop melkveebedrijf
Wagenaar, J., N.J.M. van Eekeren and J. de Wit. 2017. Functie van kruiden in kringloop melkveebedrijf. V-focus. Augustus, p. 34-35.
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Gunstig voor bodem, plant, dier en product
Wagenaar, J., N.J.M. van Eekeren and J. de Wit. 2017. Gunstig voor bodem, plant, dier en product: Over de multifunctionele rol van kruiden in de kringloop van een melkveebedrijf. Ekoland. Juni, p. 20-21.
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Wilde vogels in de kippenuitloop
Bestman, M.W.P. and J. Wagenaar. 2016. Wild birds in outdoor chicken ranges. (In Dutch.). Pluimveehouderij. 46:30-31.
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Lidrus: ‘sluipmoordenaar’ in de weide
Timmermans, B.G.H., J. Wagenaar and N.J.M. van Eekeren. 2016. Marsh horsetail: an unseen killer in pastures. (In Dutch.). V-focus. December, p. 29-31.
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Meer aandacht voor mineralenvoorziening
Pijlman, J., N.J.M. van Eekeren, J. Wagenaar and J. de Wit. 2016. Meer aandacht voor mineralenvoorziening. V-focus. Juni 2016, p. 37-39.
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Leverbot in kaart gebracht
Wagenaar, J. 2015. Like fluke disease: diagnosis, treatment and prevention. (In Dutch.). Ekoland. Maart 2015, p. 24-25.
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Herbs in grassland and health of   the dairy herd - Part 1: The potential medicinal value of pasture herbs
Wagenaar, J. 2012. Herbs in grassland and health of the dairy herd - Part 1: The potential medicinal value of pasture herbs. Louis Bolk Instituut, Driebergen. 5 p.
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Herbs in grassland and health of   the dairy herd - Part 2: Using free-lists to explore farmers’ knowledge about herbs  and cows health
Wagenaar, J. 2012. Herbs in grassland and health of the dairy herd - Part 2: Using free-lists to explore farmers’ knowledge about herbs and cows health. Louis Bolk Instituut, Driebergen. 6 p.
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Kruiden in grasland en de gezondheid van melkvee - Deel 1: De potentiële medicinale waarde van kruiden in grasland
Wagenaar, J. 2012. Kruiden in grasland en de gezondheid van melkvee - Deel 1: De potentiële medicinale waarde van kruiden in grasland. Louis Bolk Instituut, Driebergen. 5 p.
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Kruiden in grasland en de gezondheid van melkvee - Deel 2: Kennis van veehouders over kruiden en diergezondheid  verkend met 'free lists' methode
Wagenaar, J. 2012. Kruiden in grasland en de gezondheid van melkvee - Deel 2: Kennis van veehouders over kruiden en diergezondheid verkend met 'free lists' methode. Louis Bolk Instituut, Driebergen. 6 p.
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Antibioticagebruik bij bio-geiten erg laag
Wagenaar, J. and N.J.M. van Eekeren. 2012. Antibiotics use low with organic goats. (In Dutch.). V-focus. Augustus 2012, p. 32-33.
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Pluimvee: aanbieden van ruwvoer
Wagenaar, J. 2011. Poultry: Providing roughage. (In Dutch.). p. 19-23. In M.B.M. Bracke et al. (ed.) Verbeteren welzijnsprestaties in de biologische veehouderij: Korte termijn prioriteiten en aanzet tot lange termijn visie. Wageningen UR Livestock Research, Lelystad.
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Samenvatting van Kuiken naar Kip
Wagenaar, J. 2011. Summary ‘From Chick to Hen’: Preventive measures to minimize feather pecking during rearing. (In Dutch.). Louis Bolk Instituut, Driebergen. 4 p.
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Bedrijfsnetwerk   pluimveehouderij verbindt: Meer afstemming tussen opfokkers, broederijen en legpluimveehouders
Wagenaar, J. and L. Janmaat. 2011. Farmers network poultry farming connects: more synchronisation between breeders, hatcheries and laying hen farmers. (In Dutch.). Ekoland. 5-2011, p. 26-27.
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Aanbieden van ruwvoer: effect op dier en gezondheid bij opfok- en leghennen (Presentatie)
Verwer, C. and J. Wagenaar. 2011. Providing roughage: effects on poultry health (Presentation). (In Dutch.).
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Biokennisbericht #24: Zuivel en Rundveevlees
Verwer, C. and J. Wagenaar. 2011. Bioknowledge message #24: Dairy and Beef. Theme: Prolonged suckling systems. (In Dutch.). Biokennis.
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Verwer, C., J. Wagenaar and T. Veldkamp. 2011. Start feeding fibres during the rearing period of layerhens. (In Dutch.). Pluimveehouderij. 14-10-2011, p. 32-33.
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Leren van Bio-opfok
Wagenaar, J. 2010. Learning from organic rearing. (In Dutch.). Pluimveehouderij. 40:28-29.
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Bestman, M.W.P. and J. Wagenaar. 2010. Blakend in de buitenlucht. De pluimveehouderij. 2010-2, p. 26-27.
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Wagenaar, J. 2009. Kalveren bij de koe uit de mode?: Biologische melkveehouders moeten nog verder over de streep worden getrokken. Ekoland. 2009-5, p. 16-17.
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Wagenaar, J. 2009. Melkvet en -eiwit, indicatie voor weerstand. V-focus. december 2009, p. 26-27.
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Natuurlijke weerstand in de melkveehouderij
Wagenaar, J. 2009. Natuurlijke weerstand in de melkveehouderij.
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Wagenaar, J. and G. Smolders. 2009. Weerstand: Wondermiddel of eigen vaardigheid verbeteren? Ekoland. 2009-6, p. 22-23.
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Verwer, C. and J. Wagenaar. 2009. Ruwvoer in de biologische pluimveehouderij. BioKennisbericht Pluimveevlees & eieren.
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Wagenaar, J. and J. Langhout. 2008. Suckling systems improve natural living in organic dairy calves. QLIF Newsletter.
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Wagenaar, J. and A. Visser. 2006. Lekker hapje blijkt te luxe: Wormen en insecten als eiwitbron voor pluimvee. Pluimveehouderij. 36:46-47.
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Bestman, M.W.P. and J. Wagenaar. 2006. Die Besatzdichte ist ein Risikofaktor für Federpicken: Junghennenaufzucht in den Niederlanden. DGS Magazin. woche 22/2006, p. 45-48.
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Bestman, M.W.P. and J. Wagenaar. 2006. Kamkleur, verenkleed en gewicht geven gezondheid kippen aan: Gezondheidstoestand is het best te beoordelen met directe waarnemingen. Ekoland. , p. 22-23.
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Bestman, M.W.P. and J. Wagenaar. 2006. Kamkleur, verenkleed en gewicht zijn de beste indicatoren.: Gemakkelijk en toch goed de gezondheid beoordelen. Pluimveehouderij. , p. 14-15.
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Bestman, M.W.P., J. Wagenaar and G. Smolders. 2006. Weerstand verhogen noodzaak,maar nog moeilijk te meten: Ambities diergezondheid biologische veehouderij niet gehaald. Ekoland. , p. 22-23.
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Nauta, W.J., J. Wagenaar and D. Roep. 2006. Different demands of (cross)breeds in organic dairy farming.
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Visser, A. and J. Wagenaar. 2006. Alternatieve dierlijke eiwitbronnen voor pluimvee.
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Smolders, G., M. Plomp and J. Wagenaar. 2006. Lekker in het vel – weerstand van koeien af te lezen aan uiterlijk. Veeteelt. 09-2006, p. 67-67.
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Smolders, G., M. Plomp and J. Wagenaar. 2006. Weerstand zie je aan koeien: Bruikbaarheid metingen op melkveebedrijven onderzocht. Ekoland. , p. 26-27.
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Wagenaar, J. 2005. Regionaal voer in de legpluimveehouderij. Vlugschrift Veehouderij #140. Louis Bolk Instituut, Driebergen.
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Wagenaar, J., R. Methorst and R.B. Loefs. 2005. Kan de biologische legpluimveehouderij haar meerwaarde behouden? Ekoland.
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Iepema, G. and J. Wagenaar. 2005. De kip kan de worm flink partij bieden.
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Langhout, J. and J. Wagenaar. 2005. Wild of natuurlijk. Vlugschrift Veehouderij #145. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2004. Ervaringen met GPS uit de praktijk. Vlugschrift Veehouderij #114. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. and J. Langhout. 2004. Pleegmoeders verzorgen nieuwe opfok. Vlugschrift Veehouderij #110. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2003. De Luie Hond, ervaringen uit Engeland. Vlugschrift Veehouderij #97. Louis Bolk Instituut, Driebergen.
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Bestman, M.W.P. and J. Wagenaar. 2003. Biodynamic poultry breeding in the Netherlands. In Vaarst, M. (ed.) Animal health and welfare in organic animal husbandry.
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Wagenaar, J. 2002. De luie hond. Vlugschrift Veehouderij #85. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2002. GPS in balen. Vlugschrift Veehouderij #75. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2002. GPS in balen: vervolg. Vlugschrift Veehouderij #83. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2002. Is de ziekteverwekker ook de ziekte? Vlugschrift Veehouderij #81. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. 2002. Strooiselkwaliteit. Vlugschrift Veehouderij #72. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. and T. Baars. 2002. Wild Health: strategieën van dieren om gezond te blijven. Vlugschrift Veehouderij #79. Louis Bolk Instituut, Driebergen.
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Wagenaar, J. and J. de Wit. 2001. Grasland op veen. Ekoland. 2001-10, p. 22-23.
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Bestman, M.W.P. and J. Wagenaar. 2001. Uitloopgebruik door leghennen. Aanleg van beschutting stuurt gedrag van leghennen. Ekoland. , p. 24-25.
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Wagenaar, J. 2000. Kweek. Vlugschrift Veehouderij #41. Louis Bolk Instituut, Driebergen.
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Eekeren, N.J.M. van, J. Wagenaar and M. van Liere. 2000. Triticale-rassen voor gehele plant silage (GPS). Vlugschrift Veehouderij #35. Louis Bolk Instituut, Driebergen.
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Bestman, M.W.P. and J. Wagenaar. 0. Use of outdoor runs by poultry: UKEPRA NEWS 25th January: 7.
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