 OLDWICK, N.J.--BUSINESS WIRE-- insurance--AM Best has affirmed the Financial Strength Rating of A Excellent and the Long-Term Issuer Credit Rating Long-Term ICR of a Excellent of Farm Bureau Life Insurance Company FBL. Concurrently, AM Best has affirmed the Long-Term ICR of bbb Good of FBL Financial Group, Inc. FBL Financial NYSE: FFG, the holding company of FBL. The outlook of these Credit Ratings ratings is stable. Both companies are domiciled in West Des Moines, IA. The ratings r 