Research Article
Rate of Passage of Digesta in the Rumen in Holstein-Friesian and Hereford Heifers Grazing on Kikuyu (Pennisetum clandestinum) Pasture
Department of Livestock and Wildlife Management, Midlands State University, Private Bag 9055, Gweru, Zimbabwe
G. Stewart
Department of Animal and Poultry Science, University of Natal, Private Bag XOl, Scottsville, Pietermaritzburg 3209, South Africa