I can't see Janeway getting more replicator rations than the rest of the crew. There is probably a punitive restricted level of rations which the Equinox folk were on and anyone else who was bad, like Tom in 30 Days. But once you are off your punishment you are off restricted rations. Now if they got down to the wire then yes, perhaps some crew would receive greater rations, people who needed to be at the top of their game the most. Though I think they could start ripping up parts of the ship to re sequence if it came to that, useless stuff like that glass thing in Janeway's ready room. And Tom's toys.