Author/Authors :
Navidshad, B Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Mohammadrezaei, M. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Zarei, M. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Valizadeh, R. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Karamati, S. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Rezaei, F. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Jabbari, S. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Kachoei, R. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran , Esmaeilinasab, P. Department of Animal Science - University of Mohaghegh Ardabili, Ardabil, Iran
Abstract :
Since 1994 till today a few up to date have been made on the NRC (1994) recommendations for trace min-eral requirements of broilers. The high prevalence of skeletal disorders in modern broilers could be a con-sequence of the uncoordinated growth rate and mineral nutrition. The commercial companies of broiler production often use a huge safety margin of trace minerals in feed formulation, which will result in trace mineral excretion into the environment. There are differences in the commercially recommended levels of dietary trace element between commercial strains of broilers and all of them are different from NRC (1994) recommendations.
