What kind of diet is your rabbit on?
 

Mine are eating Oxbow Basic T, I give them NPF rabbit (red bag) as a treat. Vege and lots of hay. :) The hay I'm buying now is Anderson, but I like feeding APD also. I switch brands now and then just to test the rest out sometimes.

clover

thought that switching diet will cos diarrehea - true or not???

Only for pellets food. For hay it's ok, cos hay is roughly the same, just got different types and textures yes. But I haven't heard of rabbits getting diarrhoea from changing their brand of hay.

But for pellets, you must change gradually yes. Cannot change the brand of food suddenly, it may cause diarrhoea, especially in young rabbits. And if left untreated, the condition is fatal.

Changing of pellets
 

Do it very gradually...
For eg, if you use scoops, the ratio would be this :

First week: 1 old, 3 new
Second week : 2 old, 2 new
Third week: 3 old,1 new
Fourth week: All new.

During this week, make sure that u observe their poo for any changes etc