Eltahir, I. E. O.A. Elkhidir and S.A. Babiker
Animal Production Research Centre, P.O. Box 89, Kuku.

SUMMARY

A total of 16 bulls of an average initial live weight of 238.13 kg, and average initial age of 20.8 months were included in the experiment. They comprised 8 Western Baggara bulls and another 8 Friesian crossbred bulls (Friesian X local Sudan Zebu) which were purchased from the local market. The bulls were kept for a period which ranged from 133 — 156 days. They were intensively fed on molasses feed (11.09 MJ/kg, ME) and Sorghum straw (6.69 MJ/kg, ME) on libitum base. Animal were slaughtered at a target weight of 400 kg. The crossbred bulls were found to be significantly (P<0.05) higher over Western Baggara bulls in the following studied parameters : feeding period (133 days), live weight gain (1.28 kg) and feed conversion efficiency (6.2 kg DM/kg live weight gain). While Western Baggara bulls were found to be significantly (P<0.001) greater than the Friesian crossbred bulls in the following studied parameters : head weight, hide weight, omental fat and kidney fat weight .

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