Abstract 434

D'Mello,-JPF; Acamovic,-T; Walker,-AG

Dep. Agricultural Biochemistry, Edinburgh School of Agriculture, West Mains Road, Edinburgh EH9 3JG, UK.

Tropical-Agriculture. 1985, 62: 2, 145-150; 14 ref.

For 80 male broiler chickens one day old inclusion of autoclaved jack beans (JB) (Canavalia ensiformis) at 140 or 280 g/kg semi-purified diet reduced growth rate, DM intakes and efficiency of feed and nitrogen utilization. Small increases in growth and DM intakes and impaired efficiency of N utilization were found in diets with JB at 280 g/kg supplemented with arginine. JB soaked in water for 20 h at 40øC, minced, autoclaved for 1 h, dried and ground gave highest values for classical and N-corrected apparent metabolizable energy (11.8 and 12.0 MJ/kg DM).