(creditor's motion for relief from automatic stay in Chapter 12 case granted; while debtor claimed agister's lien in cattle owned by debtor's company and asserted that lien was interest in cattle that were property of bankruptcy estate, court determined that no lien in cattle existed because debtor not primarily engaged in boarding, feeding and caring for livestock of others for compensation as required by agister lien statute; even if debtor had lien position in cattle, court determined that stay should be modified due to lack of adequate protection).