Boars, Barrows and Gilts

I just came across the article, Genetic Correlation Between Boars, Barrows and Gilts for Various Carcass Traits, from the Journal of Animal Science.

1. "Boars, Barrows and Gilts" - it rolls off the tongue. What a lovely phrase.
2. Carcass traits. Ick.

Mirriam Webster defines "gilt" alternately as "superficial brilliance" and "a young female swine." Equally evocatively, it defines "barrow" as "a large mound of earth or stones over the remains of the dead: tumulus" or "a male hog castrated before sexual maturity."