1. Department of Animal Science, Dicle University, Diyarbakir, Turkey
2. Department of Animal Science, Politécnico Colombiano JIC University, Medellín, Colombia
3. Adiveter, S. L. Pol. Ind. Agro-Reus, Tarragona, Spain
4. Department of Animal and Food Science, Universitat Autònoma de Barcelona, Barcelona, Spain