Kebede Nigatu, Abuhay Abebe, Tilahun Getachew, Wossene Abebe
Aklilu Lemma Institute of Pathobiology, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia.
Trop Anim Health Prod. 2009 Dec;41(8):1787-9. doi: 10.1007/s11250-009-9356-1. Epub 2009 Apr 25.