Effect of energy density of diets for intensive bull beef production on intake, growth rate and feed conversion Ch. V. BOUCQUE, L.O. FIEMS, R.J. MOERMANS, B.G. COTTYN and F.X. BUYSSE Ann. Zootech., 29 Hors-série (1980) 233-250 DOI: 10.1051/animres:19800515