Substituição de minerais inorgânicos por quelatados em dietas para suínos em crescimento e terminação

Abstract

To evaluate the effects of the sources and trace mineral supplementation levels during growing and finishing on performance and swine carcass characteristics ,were used 1200 animals of indurtrial crosses, with initial weight 20.7 ± 0.3 kg. The animals were allotted in a completely randomize design with six dietary treatments and ten replicates, each stall with 20 animals an experimental unit. The commercial diet used was supplemented with: T1 = Inorganic trace mineral premix; T2 = Organic trace mineral premix, Se and Cr yeast - Bioplex TR® 133%; T3 = Organic trace mineral premix, Se and Cr yeast - Bioplex TR® 100%; T4 = Organic trace mineral premix, Se and Cr yeast - Bioplex TR® 66%; T5 = Organic trace mineral premix, Se and Cr yeast - Bioplex TR® 33%; T6 = No trace mineral premix. The animals were slaughtered at the end of the trial period in a packing house. The performance, gain:feed and carcass characteristics were not affected by treatments (P>0,05). The replacement of inorganic commercial premix by Bioplex TR® at a ratio of 33% provides the same results in the evaluated characteristics.