Water is known as the forgotten nutrient. Google it and you’ll find references to many species. Pedro E. Urriola shares perspectives from discussions at the recent Lehman workshop on water’s importance in pig production.
. . . water can absorb a lot of heat before it starts to get hot. . . it is essential to thermal homeostasis of pigs, and all living species . . . evaporated water removes about 540 calories per gram, this value is almost 10 times greater than other solvents.”
Source: National Hog Farmer, November 2020. Link.