Efeito do Inibidor do ativador do plasminogênio 1 (PAI-1) nos parâmetros cinéticos de espermatozoides criopreservados de touros Curraleiro Pé Duro / Inhibitor effect of plasminogen activator 1 (PAI-1) in the kinetic parameters of sperm cryopreserved of Curraleiro Pé-Duro bulls

ABSTRACT

This study was conducted to evaluate the effect of different plasminogen activator inhibitor 1concentrations (70 ƞg, 140 and 210 ƞg ƞg) in the kinetic parameters of sperm cryopreserved of Curraleiro FootHard bulls. Sperm kinetics were analyzed by means of a computer aided system (CASA). The variables evaluatedwere (MT-%) (MOP-um / s), (VCL - um / s), (VSL - um / s), (VAP-um / s), (LIN -%) ( Str-%) (ALH - uM)Wobble (WOB -%) and (BCF-Hz). The cryopreserved sperm in the presence of the inhibitor of plasminogenactivator 1 in a concentration of 210 ƞg decreased velocity parameters in a straight line (VSL - um / s) andlinearity (LIN -%). In conclusion, supplementation of the Inhibitor of plasminogen activator 1 (PAI-1),cryopreservation of bovine semen does not improve the kinetic parameters as compared to the control.(AU)