Help, my 1 yr old rattie, Violet, can clear a room.  She had gas real bad as a young pup but it is back. 
I do know that I gave her some new treats to try and help keep her attention at aglitiy class, but man alive (or dead if the smell keeps up).

Someone suggested cottage cheese, (low fat) and Violet gets 1 teaspoon full every day but it is not working now.

Any suggestions, Violet is even noticing that the smell is coming from her butt. 

Thanks.

Purina One is a low quality food, lots of corn in it, poulty by-product, corn gluten, brewer's rice.  She may be allergic to the corn but regardless I'd switch to a high quality food.

My ratties aren't gassy unless I give them something like brussel sprouts....my whippet has more gas than the ratties do.