http://experts.about.com/q/Pot-Belli...belly-pigs.htm
#1. I have heard that pigs keep snakes away...I don't know if this is true of potbelly pigs and was wondering if it is???
Wild pigs will kill and eat snakes. Under certain circumstances, farm hogs may do the same. Pot-bellied pigs rarely harm any living thing larger than a bug or worm. They may disturb a snake, but they will not attack one and their presence does not keep snakes away. I have 6 pot-bellied pigs myself, and occasionally in autumn when the weather cools a snake will find it's way inside the warm barn.
#2. I have heard that pigs are immune to poisonous snakes (rattlers) and would even kill them if they came in contact. I was wondering if it was true of potbelly pigs???
Pigs are remarkable creatures. Technically, they are not immune to snake poison, but the sheer size of a farm hog or wild boar means the venom from the bite is spread over a larger body. A rattle snake bite can kill a 150 lb human or a 150 lb (or smaller) pig. The same amount of venom may not be fatal to a 1500 lb pig, because the venom is spread over a larger body mass, but the pig will probably be quite ill.
Non-venomous snakes also pose dangers to pot-bellied pigs, a snake (or any other bite) is prone to infection.