VARIOUS investigators have demonstrated that increased performance of broilers has resulted when rations were pelleted (Patten
et al., 1937; Heywang and Morgan, 1944; Bearse et al., 1952; Lanson and Smyth, 1955; and others). Most of these investigators have attributed this increased performance to increased
density of the rations in pellet or crumble form in comparison to mash form, thus ... [Show full abstract] increasing feed consumption. Lindblad et al. (1955), however, suggested that the increase in weight and feed efficiency of broilers fed pelleted rations containing high
levels of barley was not caused by increased feed consumption. Allred et al. (1957) concluded that a large part of the increased growth and feed efficiency obtained by pelleting may be explained by
some chemical change in the ingredients of the ration, possibly the inactivation of a growth inhibitor.
The experiments reported in this paper were undertaken to determine the effect of pelleting individual ingredients of a .