I'm quite sure no scheduled airline will allow the carriage of swine in the lower bellies of any aircraft, period. Not discounting the nature of said beast, the smell alone would preclude such activity
Slightly OTT but at the moment we carry live crabs and live eel fish once a week on the main deck of our A306F from Dhaka to Guangzhou and the polystyrene boxes they pack the eelfish in have air holes punched in the tops. This also allows the sloshing water to escape......after the aircraft has been parked up for a number of hours all shut up in the desert after return to base, well, the smell.........
