Ms O'Connor grilled TasRacing chief executive Paul Eriksson and Racing Minister Elise Archer at the first day of government business enterprise hearings on Tuesday.

Tasracing reported 500 horses had participated in the Off The Track program over 2018-19, either through education clinics or re-homing.

Though Ms Connor referred to an email in April which was sent to the Greens which indicated the program was not taking any horses and the program was under review.

Mr Erikkson said Tasracing did not keep a record of each retired race horse that had been re-homed but it was working with the industry to do so.

He said 189 race horses were re-homed, according to retirement forms from Racing Australia.

Mr Erikkson said 41 more race horses had been re-homed since July through Off the Track.

He said the clinics were designed to match retired race homes with new owners to reduce returns.

Mr Eriksson said the state racing body would now get weekly updates from Racing Australia on the retirement of race horses and conduct on-the-spot welfare checks.

Labor's David O'Byrne questioned the sustainability of Tasracing.

Mr Eriksson said he agreed revenue was done but it fluctuated monthly and the company hoped to catch up over the summer period.

Government business enterprise scrutiny hearings continue on Wednesday.