Firefighters save 72 pigs after slurry tank floor collapses.

The article discusses farmer Nigel Grant has thanked firefighters after they saved several pigs that had fallen into a slurry tank on a farm in Northern Ireland. It mentions that firefighters from the animal rescue teams wore breathing apparatus and used rescue lines to pull the pigs from the slurry pit; and as monitors were used throughout the incident to monitor gas levels from the slurry.