Erratum to: Trop Anim Health Prod

DOI 10.1007/s11250-012-0222-1

The following address should also been given as the first affiliation for Youssef A. Attia:

Arid Land Agriculture Department, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia