An early guilty plea has saved trainer Neil Dyer from a longer suspension over a race day treatment infraction last year.

Dyer pleaded guilty to the race day treatment of Short Changed before its race at Kyneton on December 8 last year, admitting to administering diurex by intravenous drip on the morning of race day.

Race day treatment is open to a mandatory six-month suspension however after taking into account his guilty plea and personal circumstances, the Racing Appeals and Disciplinary Board imposed a three-month suspension.

Dyer has been granted three days to disperse the 17 horses stabled at his Kyneton property with the suspension to commence at midnight on January 20.