[QUOTE=HorsingRound;5726622]
Besides blocked nostrils, the other danger in snakebite to a horse, from what I understand, is that the venom can cause the flesh around the bite to die and slough off, leaving a wound which can be deep. This did not happen to my horse.[/QUOTE]
I’ve actually seen quite a few (well, relatively speaking…most horsepeople I know haven’t seen any ;)) untreated rattlesnake bites on legs and they do look horrible. I saw them when I was shoeing ranch horses, often they would be turned out to huge pastures and not checked on for a few days at least, so the bites weren’t found until later. They look bad and scar up, but they aren’t fatal. And keep in mind that’s with virtually no treatment. Even facial bites (which are the most common on loose horses because they get curious and put their heads down to check it out, probably not so likely on trail rides ;)) usually heal, though there is a risk that the nostrils will swell shut as mentioned.
I mean, I’m not saying to be casual about it but it’s not as a big of an emergency as most people think. In fact, many vets I’ve known don’t even give antivenin to horses in most cases. Horses are large enough that snakebites are rarely fatal. Not to mention most rattlers take some provocation before they’ll strike. We have western diamondbacks here which are I believe the most aggressive species in the US, and even so they’d rather just buzz at you and let you move on. Really, it’s not something I worry about.
What area are you in/what kind of rattlers are you dealing with? And polos probably won’t do much to protect their legs, timber rattlers especially have very long fangs and they can puncture very tough material.