Acknowledgements
We acknowledge financial support provided by the Région Basse-Normandie, FEDER, Fonds Eperon and IFCE. We also thank J.-M. Monclin (trainer) for his invaluable contribution; F. Cavé (farrier, IFCE), A.-L. Emond and S. Blondeau for their collaboration; and the AFASEC of Graignes and Hippolia cluster for their partnership.