Rest to Active metabolism is 8X
OK .. to allow breathing room ... take 461/8 = 57 liters.
My original document said 50 kJ/day rest.
http://www.pnas.org/content/87/6/2324.full.pdf
Sustained metabolic scope for mice (mus musculus -- house mouse) is given as 3.7 (12 rest, 40 sustained kJ/day)
That gives 125 Litres ... marginal -- NOT PROVEN, as usual !!!
And of course, the 1630 mice could have scurried out of the hose. Was anyone watching it?

