Syringe feeding will work, but here are some suggestions I was given in the past to try and get a cat to eat in case you want to try any of them. Finger feeding was also suggested.
-sometimes in order to get a cat to eat you even have to resort to dry it is more important that they eat. there are a couple low carb / grain free brands -- EVO and wellness core.
-making a buffet to give him choices
- heating food
sprinkle food with :
- forta flora -- a probiotic you can get at vets or online. is very smelly and cats love the taste of it.
- parm. cheese
- smashed crumbles of dry food
- bonito tuna flakes
- halo chicken treats -- crumble into dust over food
- poor a little water from tuna in water over food ( I use low sodium/no sodium added as other kinds in water has veg. broth in it and I assume that means onions, which are toxic to cats-- check labels)
-powdered oregano. yep sounds weird . but some cats like it and it will entice them to eat.
other ideas of foods to offer your kitty to stim appy:
- trader joe tuna for cats
-baby food -- beechnut turkey and broth or chicken and broth. they have no onions or other additives. some babyfoods have onions . please read labels if you can't find beechnut.
- kentucky fried chicken
- deli turkey /chicken
- plain cooked ( boiled or baked ) chicken breast
-canned chicken for people (watch the label that their are no onions)
- chicken broth -- low sodium