No appeal shall operate as a supersedeas unless the appellant, within thirty days after the entry of the judgment, deposits with the clerk of the court in which the judgment was entered a cash bond or undertaking with at least one good and sufficient surety approved by the court conditioned in case of appeal by the plaintiff that he or she will satisfy the final judgment and costs and, in case of appeal by the defendant, that he or she will satisfy the final judgment and costs and will pay a reasonable rent for the premises during the time he or she shall have unlawfully withheld the same.
Neb. Rev. Stat. §§ 25-21,234