Authors: Erastus K Kang'ethe; Violet N Kimani; Brigid McDermott; Delia Grace; Alfred K Lang'at; Monica W Kiragu; Nancy Karanja; Alice N Njehu; Thomas Randolph; Gabriel Mbugua; Tabitha W Irungu; Peninnah Ombutu Journal: Trop Anim Health Prod Date: 2012-08-11 Impact factor: 1.559