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Time-restricted feeding regimens
(A) Appearance of DRF and NRF cages in the light phase. Food pellets are placed on the hopper of a DRF cage but not on that of a NRF cage.
(B) Appearance of DRF and NRF cages in the dark phase. Food pellets are placed on the hopper of a NRF cage but not on that of a DRF cage. Red lamp is on when operating in the dark phase.
