As has already been stated, I would definitely try warming it up a bit more. I do the hair dryer trick as well. My male will eat at about any temp as long as it's thawed, but my female will only eat if I get the feeders head VERY warm with the hairdryer. The light also has to be off for her to eat - she's a pain in the butt.

Also if that doesn't work I agree with KMG about fresh killed or brained meals

Good luck!