Use of residue of passion fruit silage and hybrids corn silage, in finishing of bull at feedlot

Abstract

This experiment was developed at Unesp/Campus de Jaboticabal. Twenty seven crossbreed bull (Aberdeen Angus X Nelore), with ± 15 months of age and average 400kg of live weight, were used to evaluate the passion fruit residue silage (PRS), hybrid corn silage without grains (HCS) and corn silage (CSG) at feedlot as roughage plus corn ground and peanut meal. This evaluation was based on dry matter intake, live weight gain and feed conversion. All the rations were formulated to obtain ratio of 50:50 (roughage:concentrate). The three rations were distributed in a completely randomized design with nine replications. The treatments CSG and HCS differed (P < 0.05) for live weight gains and feed conversion. However, the dry matter intake did not differ (P > 0.05). Between periods, the dry matter intake differed (P < 0.05). The carcass showed the same results (P > 0.05) for treatments passion fruit residue silage (57.0%), hybrid corn silage (56.14%) and corn silage (56.63%) The results of this experiment showed that the residue of passion fruit is an source roughage alternative for beef cattle feeding.