Just had feral cat fixed not eating

Hi
Ive been trying to feed her with a feeding syringe. How much do i give her per day. Shes 9 months old. We fed her when she lived outside. Now we are fostering her.

How long ago was her surgery?

Wednesday

Then yes, she does need to start eating by syringe. Can you ask your vet for an appetite stimulant or high calorie food or paste? She needs calories, it's usually about 20 calories per pound she weighs. I think it's about 100 calories per day to prevent fatty liver.

Have you tried feeding her lots of different things? Smelly foods like tuna in water? Heated up food?

Thank you
She has finally started eating on her own.