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Effect of plane of nutrition on comparative weight gains of White Fulani and Friesian X White Fulani crossbred bulls. Samaru, Zaria, Nigeria: Institute for Agricultural Research, Ahmadu Bello University; 1973.
G Zemmelink et al [i.e. P.N. De Leeuw and L.H. Harbers].charts ; 25 cm.Reprinted from Tropical animal health and production, v. 5 (1973).