Okla. Stat. tit. 4, § 4-196: Filing of certificate of service - Lien on offspring -

Notice to third parties - Lien without certificate.

When the said terms of such service by any such animal,

published or posted as provided in the next preceding section, shall

provide that the foal or other product of such service will be held

for the money due for the service of such stallion, jack or bull,

then and in that event the owner or keeper of any such animal may

file, with the register of deeds of the county in which such animal

is kept for service, a certificate signed by the owner of the female

bred, or his representative, also by the owner or keeper of the male

animal rendering the service, stating the terms of such service, a

description of the female served, also a description of the male

rendering the service, the date of service and acceptance of terms

by owner of female; and such certificate, if filed within three (3)

months after the rendering of such service, shall become and

continue a lien on the offspring for the period of six (6) months

after the birth thereof, and the filing of such certificate shall be

constructive notice to any third party of the existence of the lien:

Provided, that as between the owner of any stallion, jack or bull,

as provided in the preceding section, and the owner of any female

served, a lien shall exist notwithstanding no certificate as herein

provided shall be filed or notice given as in this article provided.