Marker assisted selection in opposite directions in sire and dam lines

Specific inheritance

Unique inheritance method: paternal imprinting

  • Only the gene inherited from the father is expressed
  • The gene inherited from the mother is a silent gene and has no effect on the carcass quality of the offspring


  • BETTERgen®muscle+ (=IGF2+) increases muscle mass at the expense of back fat: on average 2-4% more lean meat
  • Effect on leanness is of the same magnitude of this reported for the Halothane gene but without any of the well-known deleterious effects on meat quality and animal health


  • Homozygous positive terminal sires (IGF2+/IGF2+) will pass the full effect to the slaughter pigs, regardless of the genotype of the mother
  • BETTERgen®muscle+ (=IGF2+) offers the possibility to push a far higher proportion of lower grading pigs into the higher payment categories.

Effect on prolificacy and longevity

  • Recent research by the company shows that parent sows benefit from inheriting the negative gene (igf2-) from their father: they are more prolific and have an increased longevity
  • Parent sows are fatter but this will have no effect on the carcass quality of the slaughter pig.

Screen now:

In Europe:
Dr. Van Haeringen Laboratorium - http://www.vhlgenetics.com
Progenus - – http://www.progenus.be
CERTAGEN - http://www.certagen.de
Livestock Genetics - http://www.livestockgenetics.be

In Canada:
CCSI – http://www.ccsi.ca/IGF2/

In USA :
Geneseek – http://www.geneseek.com
© 2003 Gentec N.V. - Development by