I’d take it as an extra 40 hours living as a farmed animal each time. Stop time in your human consciousness, live as a farmed animal for 40 hours, and then return to your human consciousness and start time again.
If you were 100% confident these animals aren’t conscious, you wouldn’t notice those 40 hours. If you thought they were conscious with probability p, you’d only notice the time as a farmed animal with probability p.
I’d take it as an extra 40 hours living as a farmed animal each time. Stop time in your human consciousness, live as a farmed animal for 40 hours, and then return to your human consciousness and start time again.
If you were 100% confident these animals aren’t conscious, you wouldn’t notice those 40 hours. If you thought they were conscious with probability p, you’d only notice the time as a farmed animal with probability p.