Hey Jeff-
I have wound and suturing experience. Is there any way you can take a close up of the wound? Does your digital camera have a macro setting? I'm pretty sure you can find absorbable suture maybe in a feed supply store, or your local vet may have some outdated suture to give you. You would want 3-0 or 4-0 size, on a 3/8" cutting needle, non-braided suture. If you could get suture, replace the ones you have put in and then close the skin over the top (you can use the same suture) all should be healed in about 10 days. The other option would be to let the crop heal (10 days), take out those sutures, then freshen the edges of the skin since they will be healed by then (cut the edge a little bit until the skin bleeds) and suture up the skin. If you get suture and replace the crop sutures soon, you may still have to freshen the edges of the skin so that the edges can heal back together. Saline is good to use to keep the wound clean.