Three hundred three week-old broilers (Vedette strain) have been fed with abasic feedstuff (group 0), or with the same food supplemented by cotton oil (group 1), by cotton oil plus vitamins (group 2), by cotton oil plus vitamins and beans (group 3) or by cotton oil, vitains, beans and blood meal (group 4). The food consumption index in group 4 differed significantly (p < 0.01) from those of the other groups. The mortality rate were 1 % (group 4), 14 % (group 3), 18 % (group 0). 22 % (group 1) and 30 % (group 2). The paralysis rates before and after the addition of blood meal in the foodstuff were, respectively, 19 % and 13 % (group 0), 22 and 16 % (group 1), 25 and 19 % (group 2), 20 and 15 % (group 3) and 4 and 2 % (group 4). Blood calcium, phosphate, lipids and proteins drop down when beans were introduced in the feed.
