Desempenho de bovinos de corte terminados em pastagem de sorgo com suplementação de farelo de trigo e de arroz integral

Abstract

Forage species typically do not have a sufficient concentration of nutrients demanded by grazing animals, causing the nutritional requirements of bovine animals kept exclusively on pasture are not met as the demand of these, which reduces the use of area used by productive cycle. The objective of this work was to evaluate the effect of wheat bran (FTR) and rice bran (FAI) for performance of beef cattle of different genetic groups (GG) in pasture forage sorghum (Sorgum bicolor). Used 60 cattle of different ages all castrated, and belonging to three GG Angus; Hereford; and a cross made up of unknown GG. FTR concentrates and FAI were supplied twice a day and adjusted as the live weight of the animals to 1%. The average daily gain (GMD) and weight gain in the period (GP) were higher for pedigree animals Hereford with GMD (1.201 ± 0.51 Kg) and GP (37.089 ± 18.09 Kg). The carcass yield for the Angus breed was (52.33± 2.44%) being the larger breed of income between the GG. Qualitative and quantitative characteristics evaluated were not influenced when compared between treatments. The use of FTR and FAI provided daily average gains satisfactory in this experiment.