CAL. CIV. CODE § 3080 : California Code - Section 3080

As used in this chapter, the following definitions shall apply:

(a) "Livestock" means any cattle, sheep, swine, goat, or horse, mule, or other equine.

(b) "Livestock servicer" means any individual, corporation, partnership, joint venture, cooperative, association or any other organization or entity which provides livestock services.

(c) "Livestock services" means any and all grazing, feeding, boarding, general care, which includes animal health services, obtained or provided by the livestock servicer, or his employee, transportation or other services rendered by a person to livestock for the owner of livestock, or for any person acting by or under the owner's authority. 3080.01. A livestock servicer shall have a general lien upon the livestock in its possession to secure the performance of all obligations of the owner of the livestock to the livestock servicer for both of the following:

(a) The provision of livestock services to the livestock in possession of the livestock servicer.

(b) The provision of livestock services to other livestock for which livestock services were provided in connection with or as part of the same livestock service transaction, if such livestock services were provided within the immediately preceding 12 months prior to the date upon which the lien arose. The lien shall have priority over all other liens upon and security interests in the livestock, shall arise as the charges for livestock services become due, and shall be dependent upon possession. The lien shall secure the owner's contractual obligations to the lienholder for the provision of livestock services, the lienholder's reasonable charges for the provision of livestock services after the lien has arisen as set forth in Section 3080.02, and the lienholder's costs of lien enforcement, including attorney's fees.