In 1973 was proclaimed the Hybridization program within pig breeding in Czechoslovakia. It was aimed at improving better pork quality and increasing higher nutrition value through meat spe­cia­li­za­tion hybrids. Duroc, Hampshire, Pietrain and Landrace breeds were using in hybridization. Proclaiming the new form meat commercializing of pigs should to ensure better interest of breeders on producing meat specialized hybrids. This form was initiated in EEC since 1985 and Czechoslovakia was prepared to ensure authorized grading assessment methods slaughter-pigs. Since March 2004 the Czech Republic is a member state of the European Union with harmonized legislation similir to EU legislature. New instruments as FOM, Ultra-FOM, ZP and HGP 4 were purchased. There SEUROP system were established. Submitted study observes quality development slaughtering pigs since the nineties to present. Pork quality was increased more rapidly than expected and in 2007 was reached the estimated level in 2010. Examples of grading methods in monitored periods is mentioned and particular effects commented.