1. Laboratory of Animal and Forage Production, National Institute of Agronomic Research of Tunisia (INRAT) University of Carthage Tunis Tunisia
2. Dipartimento di Medicina Veterinaria University of Sassari Sassari Italy
3. Unit of Physiology of Regulatory Systems and Adaptations (UR17ES10), Department of Biology, Faculty of Sciences of Tunis University of Tunis El Manar Tunis Tunisia
4. Département des Productions Animales, Service de Zootechnie et Economie Agricole Ecole Nationale de Médecine Vétérinaire Sidi Thabet Tunisie
5. Department of Animal Science Agricultural Research Agency of Sardinia Olmedo Italy