N.D. Cent. Code § 35-17-03
In addition to sections 35-17-01 and 35-17-02, any person to whom any animal is entrusted by the owner for the purpose of feeding, herding, pasturing, or ranching, upon filing the statement prescribed in section 35-17-04, is entitled to a lien upon the animal for the amount that may be due for feeding, herding, pasturing, or ranching, effective from the date the person entitled to the lien comes into possession of the animal. A lien taken pursuant to this section upon anything other than the animal is void. An agister's lien has priority, as to the animals covered by the lien, over all other liens or encumbrances, except agricultural processors' or agricultural suppliers' liens. This section does not apply to stolen stock.
N.D.C.C. § 35-17-03