1. Laboratory of Research on Local Animal Products; Institute of Veterinary Sciences; University of Ibn Khaldoun; Tiaret 14000 Algeria
2. Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennodai Tsukuba Ibaraki 305-8573 Japan
3. Department of Agricultural Sciences; Faculty of life and natural Sciences; University of Mascara; 29000 Algeria