US chicken companies pioneered restricting sleep to keep birds eating around the clock.
A new study (Li et al., 2026) recommends giving chickens just 2 hours of darkness nightly to maximize the time they spend eating. The study and photo are Chinese.
We know chickens have far better hapiness with 7–8 hours of darkness to sleep.
But they eat more and grow faster when they are sleep deprived.
I did work in warehouse of a company that sells perishables on amazon. There were times in summer when half the inventory would get molds or maggots.
It was apparently still cheaper than keeping everything refrigerated tho because the company simply bought twice as much food needed and just let the rest waste.