I know the religious literature forbids consumption or touching of swine/pig, but is there a valid reason for it, or is this one avenue to test the followers faith?
I always assumed it was due to practical reasons....the possible presence of worms-which pigs are prone to,the preservation of meat in a hot climate,and the belief that pigs are dirty-due to their tendency to have a good roll around in dirt.
I'm sure someone else will come along with facts.
As I recall it is to do with the fact that pigs are not fussy eaters and will happily forage and eat anything they can find, including other carrion. Consequently they can pick up a variety of parasites which can enter the food chain.
Cattle and sheep are quite content to munch away on grass thus reducing the risk to humans.
I read somewhere, and as usual I've forgotten where, the pig is the nearest animal to man and cannibals were reputed to call man 'long pig'. Don't know if that's true, mind, can't prove it. It may be that the Jews don't like to eat anything that is so near to man.