1. Fetlock not flexing and forward -- this started a few days ago. There is no heat, no swelling. I think there is pain, given his walk and when I poke around in the sulci of his frog he pulls away. He won't put full weight on it for very long (maybe a second) when left to his own devices, whether standing or grazing. I can apply pressure to the joint, and both above and below without a reaction. I can move the joint, but there is resistance when I try to extend it. Could this have happened when he kicked the 100 lb rottie in the head? Why no heat? Possibly a bruise on his hoof about halfway up in the just to the outside of the front.
2. Not progressing and pot-bellied -- His spine is protruding slightly and overall looks thin, except for his belly. He has been wormed and manure has been checked. It's not worms. He eats hay, pasture grass and foal rations -- currently on Buckeye. He drinks fine, but spends an inordinate amount of time at the salt block. While I watched him for about 30 minutes he went back to the salt block about 6 times. His urine looks and smells normal, but to me his manure doesn't smell like horse -- it smells like cow or something. He has lots of gut noises, no pain when prodded, and lots of gas passing. The gas is almost a constant thing.
His feed has whole oats in it, but I don't see any oat husks at all in his manure -- shouldn't there be a few? I'm used to seeing a few. We gave him some mineral oil today and he will be taken off everything except hay and pasture grass for a few days to see if there is a change.
Sorry I forgot to get a good side shot to show his belly, maybe you can see some of it in the video. You can kind of see it in the rear shot. Hopefully I will be able to get the video loaded and you can check out his movement. Here are pics of his fetlock.