Am I correct in assuming this was a congenital and not acquired? I think I’d be taking photos at least every other day to monitor changes.
We were told by Purina years ago, that 80% of DOD’s are genetically predisposed to occur and only 20% were nutritionally induced.
Buckeye (when Don Kapper was still there) told us that 80% of DOD’s are nutritionally induced and 20% were genetically predisposed to occur, however the 20% could be managed with proper nutrition.
From what I’ve seen and learned over the years, I lean towards Buckeye’s (Don’s) way of thinking and managing DOD’s. Simply stated, if poor nutrition was a contributing factor, then good nutrition could help correct if caught early enough.
It sounds like you’ve been doing the tetracycline/splint treatment for a number of days with limited success based upon your photos. If after 14 days, the tetracycline is not helping, I’d probably cease due to possible side effects.
Have you or your nutritionist assessed the mares diet? Since copper is the probably the most important trace mineral for elasticity of connective tissue (tendons), how much supplemental copper from feed is the mare getting per day?
As I’d previously mentioned in your post in Horse Care, and as JB had mentioned earlier, I would definitely get this foal on Rejuvenaide Plus or Leg Aide from your vet. Based upon the photos, I’d start administering at 4x’s the recommended dosage for 30 days.
IMO, if this foal’s contracted tendons was due to a nutritional deficiency, any intervention in the way of drugs, splints, surgery will be of little value unless that deficiency is corrected.
As far as turn out, I would turn out as much as possible unless the foal showed obvious signs of discomfort.