Not Eating New pig not eating veggies, tooth issue?

Ok, I will preface this by saying that I've never had a pig with tooth issues. But a few weeks ago I lost one of my guys to heart disease. Last Tuesday I adopted an aby from my local humane society. They said he was 10 months old and that seems about right I think. He was very scared the first few days (totally normal), but was eating hay and pellets. He wouldn't eat any veggies and hasn't since.

I have tried putting a salad in his cage, he seems totally uninterested. I cut up very small pieces last night and mixed them with his pellets because they had him on some kind of food with dried pieces of something in it, but he just ate around the veggie pieces (I use Oxbow pellets). So this morning I cut some carrots and pepper into slivers and tried forcing it. He would maybe take some nibbles with his front teeth but otherwise just pushed it out with his tongue and didn't chew at all with his molars. He's still eating hay and pellets just fine. My husband went out to the garden and got some fresh cilantro, he would eat some of the stems (when forced), otherwise, nothing.

Has anyone experienced this? I'm debating whether he's just stubborn or if there's a problem. His front teeth look good, they appeared not to line up great but it must have been the way he was holding his jaw because they're worn evenly. He does seem to tire semi-easily and the poor thing has lost 1/3-1/2 of each ear (no clue and previous owners claimed they didn't know either). He hardly makes any noises at all (I haven't heard a wheek or annoyed chatter, but have heard a few squeaks when held). I'm guessing he's had a rough life. But otherwise is acting normal. No blatant signs of illness so far (no sneezing, discharge, etc). Any ideas?