The so called "Laurentian Sow" from the first or second century ad.
"Before harvest the sacrifice of the porca praecidanea94 [sic. I.e. "old sow"]should be offered in this manner: Offer a sow as porca praecidanea [i.e. "old sow"] to Ceres before harvesting spelt, wheat, barley, beans, and rape seed; and address a prayer, with incense and wine, to Janus, Jupiter, and Juno, before offering the sow."
Cato the Elder - De Agricultura (On agriculture) 134
Translated by W. D. Hooper and H. B. Ash