I don't think rats are required to have any sort of vaccinations or worming.
But deworming is a good practice regardless.
You can buy a tube of Horse Dewormer (1.87% Ivermectin) from a feed store. It's only a few dollars for a big tube. ($2-7 depending on brand)
You can give a rice grain size dosage to your rats.
I like to de-worm my breeder rats once a year as a precaution. I'd rather not feed my snakes worm infested food....
Plus it keeps the external parasites off as well. Also, do not use on nursing/pregnant females or pups under 2 weeks old.









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