Yes, I sew them up in the field. Gentlemen, I'm not talking about doing surgery. I'm talking about the basic "my dog isn't hurt to badly but he needs some sutures to close that flap" type of injury. Or just to close a gaping cut. If it isn't bleeding, I don't worry about it. If the injury is deep and long, it needs attention to prevent infection and to speed recovery.
Ever see a dog come back with a cut all the way though the outer layer of skin laid open and the gap is filled with debris (seeds, burrs, dirt, etc)? It's a mess, and needs attention.
Dogs don't have a lot of sensitivity in the outer layers of skin. A reverse cutting needle and the right kind of suture make for some pretty easy work. Sutures normally need to be put in place within roughly 4 hours or so. If it's been longer than 4 hours there's a good chance that the wound will have to be "refreshed" and I'm not qualified to do that.
Keep in mind that I can't do extensive work in the field; and if it's cold (below 15) I've got to get them somewhere where I can keep my fingers warm enough to do the work. I prefer to get to a warm dry place. A barn, a shelter belt, or even a deep draw with tall clean grass are good places to do the work. If it's close to the end of the day, I'll take them back to where ever I'm staying. If it's warm, the tailgate of the truck works very well.
Regarding hitting barbed wire, I guess I'm not as lucky as Shadow. My dogs seem to bleed quite a bit when they hit the fence. My mutts go hard enough that I finally said "enough is enough" and learned to suture. Fortunately I've only had to suture one small 2" gash this year.
Rutt, staples are easy, but my problem with them is getting them to set correctly. In addition, I find that on a hard charging dog they may not hold. Sutures, on the other hand, seem to hold very well. I'm not saying that a suture on the foreleg or the top of a paw will hold, but chest, neck, and flank repairs hold nicely. Staples are way better than nothing though.
Lastly, if you can come across some novocaine it will make the tough jobs much easier.
Scoelki, I'm not a big fan of EMT Gel. Perhaps I'm just not using it correctly.
By the way another good thing to carry is NuSkin. It's somewhere between crazy glue and EMT gel. I use it on minor scraps and in places where the dog has been rubbed raw (like when I dog loses a pad on due to running on rocky ground). It won't solve the problem completely, but NuSkin and Lewis boots go a long way toward putting feet with thrown pads back on the ground!
Point!