Figure 1.
Figure 1.

Ambient room temperature (°C) by day during the 35-d experiment. Temperature was controlled to achieve a constant 24°C in the thermoneutral room that housed thermoneutral and pair-fed thermoneutral barrows. The heat stress room that housed the heat stress barrows was controlled to heat in a diurnal pattern at 28°C from 2000 to 0800 h and at 33°C d from 0 to 7, 33.5°C from d 7 to 14, 34°C from d 14 to 21, 34.5°C from d 21 to 28, and 35°C from d 28 to 35 from 0800 to 2000 h.

 


Figure 2.
Figure 2.

Relative humidity (%) of the room by day during the 35-d experiment. Humidity was not governed during the 35-d experiment. Thermoneutral room housed thermoneutral and pair-fed thermoneutral barrows, and the heat stress room housed heat stress barrows.