THE EFFECT OF WEANING AGE ON THE POST-WEANING PERFORMANCE OF ARTIFICIALLY REARED CROSS-BRED ( KENANA X FRIESIAN )CALVES IN THE GEZIRA. The Sudan Journal Of Animal Production [Internet]. 1988 Jan. 15 [cited 2026 Oct. 19];1(1):17-23. Available from: https://sud-jap.sd/Journal/index.php/sjap/article/view/19