Sandra Boynton has an album of Pigorian Chant, recorded at the monastery of Snouto Domoinko de Silo, which includes a similar song, although the tune is different. I don’t have the recording on me, but it begins “Ecce Macondaldus senex / qui fundum habet / EIEIO”.

The album is a collection of songs by various farm animals (and the hapless farmer), all of whom sing in Latin, except for the pigs, who sing, natch, in Pig Latin.

Non plaudite. Modo pecuniam jacite.