Abstract: The invention concerns compositions and methods combining at least two phytases for hydrolyzing phytic acid (myo-inositol hexakis phosphate) into inorganic monophosphates, into myo-inositols with lower degree of phosphorylation and into free myo-inositol. Said compositions and methods are of particular interest for animal feeding.

Abstract: Polypeptides comprising a polypeptide chosen from the group consisting of the polypeptide of SEQ ID No. 2 and a polypeptide exhibiting at least 90% identity with the polypeptide of SEQ ID No. 2. Polynucleotides selected from the group consisting of the polynucleotide whose sequence is between position 1538 and position 2923 of SEQ ID No. 1, and a polynucleotide encoding the polypeptide chosen from the group consisting of the polypeptide of SEQ ID No. 2 and a polypeptide exhibiting at least 90% identity with the polypeptide of SEQ ID No. 2. Furthermore, vectors and expression cassettes comprising the polynucleotide.

Abstract: The invention concerns compositions and methods combining at least two phytases for hydrolyzing phytic acid (myo-inositol hexakis phosphate) into inorganic monophosphates, into myo-inositols with lower degree of phosphorylation and into free myo-inositol. Said compositions and methods are of particular interest for animal feeding.

Abstract: The invention concerns a gene coding for a Debaryomyces castellii phytase which hydrolyzes the six phosphate bonds of phytate. The invention also concerns the uses of said phytase in nutritional additives or foods for animals for improving their digestibility and nutritional value.