Breeding of Pietrain specialized line S11

The nucleus herd was maily composed of 53 sows and 7 boars of Pietrain which were imported from Hybrids Company of France in 2001, and 150 sows and 4 unrelated boars of Pietrain which were imported from Nucleus Company of France in 2009. The open systematic breeding method was used with proper introduction of superior boar semen. Growth and development performances were tested during the improvement period. The Best Linear Unbiased Prediction (BLUP) method and Molecule Maker Selection and Genomic Selection technology were integrated and implemented. The specialized line S11 was obtained after 13 years of breeding. This line S11 possessed the characters of muscular fullness, fast growth and high feed converse efficiency, and the stressed halothane gene was lower than 10%. The line S11 was a suitable sire line for producing high weight slaughter pigs.