Fig 1. Ground plan of the pig compartment.
Each pen had six animals, one feeder and one drinker. One microphone recorded the sound.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.