Muna M.M. Ahmed and Buthina M. Rahama

Institute of Environmental Studies, University of Khartoum
P.O.Box 123.

SUMMARY

21 Friesian heifers and 21 Friesian bull calves were randomly allocated to 3 rations (A, B, and C) formulated in such a way that sorghum gluten feed replaced cotton seed cake and sorghum grain alone or groundnut hulls respectively. Parameters measured were body weight, gain and dry matter consumption during 10 weeks experimental period.

Although the three rations were iso-caloric and iso-nitrogenous, the best performance was observed with ration C followed by B and A. Bull calves were heavier than the heifers, they consumed more food and had better feed conversion efficiency. Under Sudan conditions growth rate of exotic breeds could be improved through manipulation of voluntary feed intake.

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