Commission Regulation (EC) No 868/2009 of 21 September 2009 amending Regulation (EC) No 748/2008 on the opening and administration of an import tariff quota for frozen thin skirt of bovine animals falling within CN code 02062991 and Regulation (EC) No 810/2008 opening and providing for the administration of tariff quotas for high-quality fresh, chilled and frozen beef and for frozen buffalo meat