With the exciting news that Tri-Solfen has now received APVMA approval for use in Calves to alleviate pain associated with castration, we pay tribute to Zanda McDonald, MDH Holdings.

We were blessed and privildged to have known Zanda, a visionary Australian cattle baron, who championed, supported and facilitated the first Northern cattle research trials on his Queensland cattle station “Devoncourt”, Cloncurry – with Veterinarian Ed Butterworth, Animal Ethics and Sydney University team, to examine the use of Tri-Solfen for pain relief in calves undergoing husbandry procedures. He has left a remarkable legacy. We hope we have done his memory proud by now succeeding in achieving this outcome.

You can read about Zanda and his legacy HERE.