Leading FE-tolerant Sheep genetics in NZ — proven, not promised.

The FE Advantage.

Romani Coopworths carry a long-established reputation for proven FE tolerance, built on the groundbreaking work of Edward Dinger at Ceres Farm. Today they rank among the country's most FE-tolerant genetics: in the 2026 season, rams were dosed with sporidesmin at 0.68mg/kg liveweight and returned a 65% nil-response pass rate.

Breeding for FE tolerance is any sheep farmer's first line of defence against its clinical and sub-clinical effects. At Romani, Edward's foundation work has been built on by combining it with genetics from our own flock, so FE tolerance and productivity gains go hand in hand.

With many farms seeing their summers shift from hot and dry to hot and humid, FE is becoming a growing concern across the North Island and the upper South Island alike.

Romani Coopworths belong to the FEGold Certified Group, which brings together the country's leading FE-tolerant flocks and is helping raise awareness among ram buyers of the value of FEGold genetics.

Ross and Ruth first proved that FE tolerance and flock productivity could go hand in hand back in 1999, when they began crossing their own Romney composite flock with Coopworth genetics. Many clients from other breeds still come to Romani today seeking the same gains they made all those years ago.