“We decided we'd give her a crack at the Doncaster, so we'll just leave Saturday up to Daysee now,” Quinton said.
The two mares have been the backbone of Quinton's stable for several seasons and both are Group One winners following Dixie Blossoms' popular Coolmore Classic victory two weeks ago.
Daysee Doom was scheduled to go around in the same race and attempt to defend her Coolmore title but was scratched because of a wide barrier and the heavy track conditions.
She gets the chance for a consolation win in Saturday's Emancipation, a race dear to Quinton's heart.
The former champion jockey regularly rode Emancipation during her stellar career and will chase his second win in the feature following Faith Hill's 2003 success.
“She trialled last Friday over 1200 metres and she won her trial, but she needed to win the trial given the opposition she was against,” Quinton said.
“We were happy enough with her and she's drawn a relatively good barrier for a change in five.
“She's rock-hard fit so she should run well.”
Daysee Doom finished third in the Emancipation Stakes two years ago and fifth last year, although she was beaten less than a length.
Saturday's race has attracted a classy field headed by Godolphin mare Alizee along with last year's runner-up Oregon's Day and Coolmore Classic placegetter Princess Posh.
Victorian mare Naantali comes into the race on an eight-day turnaround after her fourth in the Sunline Stakes at Moonee Valley last week and co-trainer David Eustace expects her to hold her own.
“She's backing up, which we think might suit her because she can go into a race quite fresh,” Eustace said.
“We know it's no easy task with the field she's up against but we'll see how she gets on.”
Alizee was an even money favourite on Thursday with Daysee Doom and Naantali both $14 chances.