100 Days Grain Fed OP Rib$9. 00 100g Experience the exceptional taste and unrivaled tenderness of our 100 Days Grain Fed OP Rib. This premium cut, superlatively marbled and bursting with flavor, is sourced from cattle that have been fed a meticulous diet of grains for an impressive 100 days. Discover the delights of our 100 Days Grain Fed OP Rib: Optimal Feeding Program: The cattle are fed a 100 day grain diet, resulting in a unique, intense flavor and a delicate texture in