Re: #photo #photo
Can you please add the link to the photos (https://ecir.groups.io/g/CaseHistory/album?id=265991) to your signature? If you want to change the sort order you need to go to the upper right hand corner and select "sort by" and the specify name/date posted/date taken. That will only change the view for you, not everybody else.
Now as far as the pictures themselves - I would put this horse at about a 3 on the Hennecke scale, if not less. (You can see photo examples of horses at different body scores here: https://ecir.groups.io/g/main/files/Case%20History%20Tools/Tools%20and%20How-To%20Help/Body%20Condition%20Scoring%20Guide.pdf).
If you've already run bloodwork on him and nothing is obviously wrong I would be supplementing his pasture with hay at a rate of 2% of his ideal weight (19lbs/day for a 950lb horse) to see if that helps him put weight on. If he does not gain weight with an increase in forage you may need to do a deeper dive into what else might be going on with him, but to my eyes this is not just a possible PPID issue.