Commission Regulation (EU) No 171/2011 of 23 February 2011 concerning the authorisation of 6-phytase (EC 3.1.3.26) produced by Aspergillus oryzae DSM 14223 as a feed additive for poultry and for porcine species and amending Regulation (EC) No 255/2005 (holder of authorisation DSM Nutritional Products Ltd represented by DSM Nutritional products Sp. z o.o) Text with EEA relevance