Previous studies (Steen 1995) have clearly illustrated that finishing male cattle entire increases animal performance and food conversion efficiency. Post implantation of the Mid Term Review of the Common Agricultural Policy, in the absence of subsidy, there is renewed interest in finishing beef cattle entire. Also with the expected contraction of the suckler herd post MTR of CAP there will be a reduced number of cattle available for finishing. Feed is one of main variable costs of finishing beef cattle. Consequently the objective of the present study was to evaluate the effect of forage:concentrate (F:C) ratio and weight at slaughter on the animal performance of ¾ or more continental bulls from the beef herd.