Members of this thesis committee: - Prof. dr. ir. Johan van Arendonk - Prof. dr. Frans Brom - Prof. dr. Joske Bunders - Han Swinkels Ph.D., MSc. - Prof. dr. Arend Jan Waarlo ISBN: 978-90-8891-945-9 This research was supported by the program The Value of Animal Welfare of the Dutch Organization for Scientific Research and the Ministry of Economic Affairs. Photographs taken by Marianne Benard on the Jofrahoeve: an organic farm that won the 2010 competition of ‘Best mudd pool’, organized by the Dutch animal protection organization Wakker Dier. Lay-out: Charlotte Aal & Marianne Benard Published by: Uitgeverij BOXPress, ‘s-Hertogenbosch © Marianne Benard, the Netherlands 2014 All rights reserved. No part of this work may be reproduced by print, photocopy or any other means without written permission of the author. VRIJE UNIVERSITEIT Engaging Society in Pig Research A multistakeholder approach to enahance animal welfare in pig production ACADEMISCH PROEFSCHRIFT ter verkrijging van de graad Doctor aan de Vrije Universiteit Amsterdam, op gezag van de rector magnificus prof.dr. F.A. van der Duyn Schouten, in het openbaar te verdedigen ten overstaan van de promotiecommissie van de Faculteit der Aard- en Levenswetenschappen op vrijdag 10 oktober 2014 om 11.45 uur in de aula van de universiteit, De Boelelaan 1105 door Marianne Benard geboren te Rotterdam promotor: prof.dr. Tj. de Cock Buning compromotor: dr. R.J. Regeer