Object: Electronic Auction - Price Registration For Future Installment Acquisition Of Heat Cycle Inhibitor Contraceptives For Canine And Feline Females, And Provision Of Sterilization Surgery Services (Castration) For Dogs And Cats, Males And Females In The Municipality Of São Vicente Do Sul/Rs (Contractor Must Provide All Materials, Medicines And Supplies Necessary To Carry Out The Services In Its Own Space).