#$%^&*AU2012201038A120120315.pdf#####ABSTRACT The invention relates to Citrobacter phytases derived from Citrobacter amalonaticus, Citrobacter gillenii, and related phytases. The phytases belong to the acid histidine phosphatase family, are acid-stable, and expectedy of a high specific activity activity. The invention also relates to the corresponding DNC, the recombinant and wild-type production of the phytases, as well as the use thereof, in particular in animal feed.