Lewis & Short

1. porca, ae, f. [porcus], a female swine, a sow, Cato, R. R. 134; Pall. 3, 26.
By poet. license for a male swine, a boar, Verg. A. 8, 641 Serv.; cf. Quint. 8, 3, 19: tenera, Juv. 2, 86.