Published online by Cambridge University Press: 27 March 2009
The metabolizable energy values of eleven samples of field beans (Throws M.S.). representative of different generations, locations and soil types, were determined using 3-week-old broiler chicks. A mean ‘classical’ value of 2·40 ± 0·09 kcal/g (10·09 kJ/g) was obtained, together with a mean nitrogen-corrected value of 226 ± 0·11 kcal/g (9·47 kJ/g). There was a considerable variation within groups of samples classified according to generation, location or soil type, so that no distinct relationships were detectable. Supplementary analytical data relating to moisture, crude protein, oil and fibre of the samples are also presented.