Full results of tests taken from horses trained by Greg McFarlane will take up to two weeks with the trainer unable to nominate any runners while an inquiry into raceday treatment of Ferocimo is ongoing.

McFarlane and a stable employee were found with Ferocimo, who had a nasal tube inserted, just two hours before he was due to race at Rosehill on Saturday.

Horses are not allowed to be treated within 24 hours of a race.

The trainer admitted at Saturday's inquiry he had intended to treat Ferocimo but had been interrupted and it had not taken place.

Stewards took custody of tubing equipment, a bucket containing liquid and 20 sachets of powder.

The powder will also be tested.

The most common reason for tubing horses is to administer TC02 (bicarbonate) which slows the build-up of lactic acid.

"The blood tests for TC02 will take a couple of days but the urine tests will take up to two weeks," Racing NSW chief steward Ray Murrihy said.

"In the meantime horses accepted by the stable for Kembla Grange and Wellington on Tuesday have been withdrawn.

"The unscheduled visit to the stables was part of our ongoing vigilance along with the investigative unit."

McFarlane said he had treated other horses on Saturday which were not racing.

He initially told officials the horse he was with was Belegic, who was not racing on Saturday, but later admitted it was Ferocimo and he had been "stupid" for lying about the horse's identity and for planning to treat it.

"It was a knee-jerk reaction," McFarlane said.

"There's not much I can say."

Murrihy reminded McFarlane at the inquiry of the serious nature of the incident and the new minimum penalty of 12 months disqualification for anyone found guilty of committing or attempting to commit such an offence.

Under recent changes to the NSW Crimes Act there is also the potential for police involvement relating to fraudulent conduct which may affect the outcome of a race.

Tamworth trainer Cody Morgan is on bail after being charged with such an offence in May regarding the horse Prussian Secret.