1. Department of Animal Physiology and Livestock Systems National Institute for Agriculture, Food and Environment 78352 Jouy‐en‐Josas Cedex France
2. Department of Anesthesiology, Pharmacology and Therapeutics, Faculty of Medicine University of British Columbia Vancouver Canada
3. Department of Biology, Toxicology and Pharmacology, Nutritional and Hormonal Biochemistry Unit Institute of Biology and Pathology, University Hospital Center of Grenoble 38043 Grenoble Cedex 9 France