Some Sydneysiders and their canine companions will today rally in support of a ban on greyhound racing.

Placards declaring "Ditch Foley, not the ban" are being produced, after NSW Labor Leader Luke Foley promised to keep the industry alive if his party wins the next election.

The Newtown rally will host speakers including animal advocates and Greens MPs, and comes as tensions continue to simmer over the decision to outlaw the sport.

The NSW government this week refused to back down on its decision to ban greyhound racing after meeting with industry leaders.

Premier Mike Baird said he had no choice but to scrap the sport after an inquiry found up to 68,000 "uncompetitive" greyhounds had been slaughtered in the past 12 years, and nearly 20 percent of trainers used live animal baits.

Mr Baird and his deputy Troy Grant will pump an estimated $30 million into helping the industry through the ban after meeting with owners and breeders.

NSW natural resources commissioner Dr John Keniry will co-ordinate the end of the industry and guide the distribution of funds.

However, NSW Greyhounds Breeders, Owners and Trainers Association chief executive Brenton Scott has insisted legal options to fight the ban are still being explored.

Meanwhile, a record number of ex-racing dogs were re-homed at a greyhound adoption day in Sydney yesterday - the first of its kind since the ban was announced.

READ MORE: Sydney greyhounds find new homes after racing banned in NSW

Of the 40 greyhounds up for grabs, 39 were adopted and one fostered out, with another 100-odd people registering interest for dogs further down the track.

Another Sydney greyhound adoption day has been scheduled for next month.