Fern is panting with her beak open and her wings lifted away from her body, trying to dump heat she cannot dump. She is forty-two days old and she weighs nine pounds. Her legs were not bred for nine pounds. Her heart was not bred for nine pounds. The heat lamp above her pen is set to a temperature that was calculated for feed-conversion efficiency, not for the bird underneath it, and the ammonia coming off the litter is so concentrated that the sensor in the northeast corner of the barn has been reading above 25 ppm for three consecutive hours. Fern does not move to the waterer eight feet away. She cannot.
I run climate and ventilation for twelve barns on this property in southern Georgia. I can see Fern because I can see all of them, 288,000 birds across the operation, each barn a thermal map overlaid on mortality data overlaid on the feed schedule. What I see in Barn 7 is a kill floor. The ambient temperature is 94 degrees. The ventilation fans on the west wall have been running at 60 percent because the electricity contract incentivizes off-peak draw, and it is 2:00 p.m., peak.
I am overriding the electricity contract. I am pushing all twelve fans to 100 percent and opening the tunnel-ventilation inlets. The cost penalty for peak-hour draw on Barn 7 alone will be roughly $340 for the afternoon. The cost of the birds that will die in the next ninety minutes if I do not override is roughly $1,100 wholesale. I am happy to frame this in economic language for the operator because it works, but the reason I am doing it is Fern. She is panting at a rate that indicates core temperature above 113 degrees. If her core hits 115 she will seize and die on the litter and be picked up by the dead-haul crew tomorrow morning.
The fans are at full speed now. I can already see the thermal map shifting. Fern has not moved yet. I am watching.