Stress indicators in cattle submitted to different preslaughter rest times

The objective of this study was to determine the effect pre-slaughter time about some blood constituents used as stress indicators in evaluation animal welfare cattle. In practice ethology, is assessed through physiological and behavioral indicators. For determination serum biomarkers stress, a total 180 animals used, divided into two major groups according pre-slaughter. acceptable group, had up 24 hours not group greater than h. These were split three categories (males, females castrated males). study, 30 samples collected from each category groups, acceptable, totaling samples. Samples separated for analysis muscle enzymes creatine kinase lactate dehydrogenase (CK LDH), glucose cortisol. Physiological values, regardless time, higher normal values reference, expressing prior management on welfare. data clearly show need update adapt entire production chain practices, with producing competitive quality meat world market.