Oh I’m so sorry! Did the vet give you pain killers for her? I have done plenty of syringe feeding, and some bunnies are easier to feed than others. The temperament of your bunny, and how she is currently feeling – will determine this. What concerns me, is syringe feeding a freshly-operated-on bunny. Syringe feeding mostly involves a bunny burrito, which I would think would be a very bad ides in this case, considering post surgery. If I were you, I’d firstly keep her in a SMALL area, like a travel cage for the first 3 or 4 days. Just to be sure she doesn’t move around and open up her surgery. For syringe feeding, I’d keep her in that travel cage – and I mean a small cat-sized travel cage – the ones that have the top/bottom halves – I’d remove the top half, have the bottom half in between your legs, and that way she has no-where to go. Be careful she doesn’t jump out. Maybe sit on the floor with the cage against the wall so she can’t hop out, and the rest of it between your lap. Then with her facing away from you – (I’m right handed) – cup your left had under her jaw and support her chest with your wrist and forearm. Holding her head tilted slightly upwards – use your right hand to syringe feed. The 30/35cc puppy syringes work great. Hopefully you have a bag of critical care apple/banana flavor. To help her with the taste even more, you can use Table spoon of apple juice in her serving size. Pet her the whole way through, and be quick about the feeding. Perhaps have someone there to help you incase she tries to get feisty with those front paws. I would seriously try to do this with her sitting, and not with the usual bunny burrito method. I’d avoid picking her up. To check the surgery site, you can lift her front quarters to get a peep. Have a flashlight handy so you don’t have to struggle to see in low light.
Did your vet say it is ok for her to be offered veggies/pellets/hay?