N.J. Stat. § 4:21-7
If the owner of cattle, horses, sheep or swine impounded as provided in sections 4:21-1 and 4:21-2 of this title, shall not pay the charges for impounding and keeping such animals within five days after they are impounded, and take them away, the poundkeeper shall give at least five days' notice of the intended sale of such animals by setting up notices in five or more public places in the township.
If the owner shall not redeem the animals before the time so notified, the poundkeeper shall sell them accordingly, either on the day so advertised or on the day to which the sale may be publicly adjourned.
Out of the money arising from the sale the poundkeeper shall pay the charges of conveying to and letting into the pound, keeping and feeding the animals and two dollars for advertising and one dollar per head for selling them, and pay the surplus to the owner of the animals if he shall appear and claim it within three months after the sale.
If the owner shall not appear within three months, the surplus shall be paid to the overseer of the poor of the township for the use of the poor thereof.
N.J.S. § 4:21-7