The suggestion that sucrose or even glucose ingestion in large proportions could be the origin of the laxative effect in pigs and poultry fed sugar cane final molasses (Alvarez 1976; Entringer et al 1975) has not been a successful explanation considering that high-test cane molasses, or even molasses type A and B, have high digestibility indices, in line with a slower rate of passage of digesta, mainly in the large intestine (Ly 1977; Ly and DA