1. Department of Genetics, Physiology and Microbiology, School of Biology, Complutense University of Madrid, C/José Antonio Novais 12, 28040 Madrid, Spain
2. Department of Physiology, College of Veterinary Medicine, Complutense University of Madrid, Avda. Puerta de Hierro s/n, 28040 Madrid, Spain
3. Department of Animal Medicine and Surgery, College of Veterinary Medicine, Complutense University of Madrid, Avda. Puerta de Hierro s/n, 28040 Madrid, Spain