Fattening performance and carcass traits of implanted and supplemented grassfed bulls

Ninety-nine uncastrated males were randomly distributed into four grazing groups to examine variation in growth and carcass traits, due the implant regime [Implantation of 72 miligrams (mg) Ralgro® at day (d) 0 followed by its reimplantation d 90 versus implantation Revalor® mg 90)], suplementation type [mineral supplementation (MS) strategic (SS)]. With a 2 x factorial arrangement, analysis variance included treatments their interaction (implant regimen supplementation) as fixed effects, breed random effect. The was not significant; neither did on any trait (P > 0.05). Compared MS, SS group had greater daily weight gain (779 vs. 541 grams; P < 0.001), required shorter (38.3 lesser) time fattening reach end point (198.3 236.6 d; 0.001) with heavier liveweight (498. 474. 4 kilograms; = 0.02) an earlier age (29.4 30.­8 months; higher dressing percentage (59.13 vs 57.62 %; 0.03) younger bone maturity 0.001). exception thoracic depth, traits vary use aggressive regimens improve or characteristics bulls is justified. feasible practice performance but no beneficial impact quality expected.