Sydney trainer Sam Kavanagh and five others have been disqualified at the end of a long-running inquiry prompted by an illegal level of cobalt in a post-race sample taken from Midsummer Sun after his Gosford Cup win in January.
Kavanagh yesterday received a sentence of nine years and three months for 23 offences relating to cobalt and raceday treatments.
As the investigation progressed, the trainer named Melbourne vet Dr Tom Brennan as the source of a product called Vitamin Complex, later found to contain high levels of the banned cobalt.
Brennan, who initially denied being the source, was ousted for six years, for 12 offences, including supply, improper conduct and false evidence.
Aaron Corby, the clinic's practice manager, was given a three-month sentence for false evidence.