Timothy hay... Or any

[daisyandparsley7]

Can you just switch brands of Timothy hay without gradually mixing it in. I switched and I can't tell if he is not eating it as much or just spreading it around.

 

[Korr_and_Sophie]

Hay is generally one thing you can switch without much issue. While some brands and even bags of hay can vary, there is usually not a ton of difference and it tends to not cause digestive problems with rabbits.
Changing type of hay may require a bit of a gradual introduction, but usually over a couple days should be enough just to make sure there is no issue with them.

Some rabbits are more picky, so might not like one brand over another.

 

[Imbrium]

The *only* time a hay switch needs to be done gradually is when introducing alfalfa (which should only be done with juveniles, nursing does and possibly older rabbits having trouble keeping weight on) - switching from one kind of grass hay to another abruptly won't upset their digestive systems. That said, when switching to a different type (or even to a different cut of the same type), it's still a good idea to offer both the old and the new hay at first. As soon as you're sure your rabbit likes/is eating large amounts of the new hay, then you no longer need to offer the old kind.