title: The effects of two alleles of IGF2 on fat content in pig carcasses and pork.
abstract: The different fat infiltration capabilities of two alleles of IGF2 (G3072A) have been investigated in pigs of a Landrace-Large White×Duroc cross. Paternally inherited G allele carrier pigs show an increased content of adipose rich meat cuts such as the lard or the belly and 4mm larger backfat thickness values. Paternally inherited A carrier pigs on the other hand contain larger muscle tissue rich cuts such as the loin, the ham and the tenderloin and have 0.19 units lower feed conversion index. No substantial differences have been found neither in intramuscular fat content in several muscles nor in meat quality in both pig groups. Hams of paternally inherited G carrier pigs are richer in both subcutaneous adipose tissue (23.1 vs 19.1mm backfat thickness) and intermuscular fat content. The suitability and the economics of using any of the two of both genotypes for cured ham production are discussed.
authors: Departamento de Producción Animal y Ciencia de los Alimentos, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain.
authors: Carmen
authors: C
authors: Burgos
authors: Almudena
authors: A
authors: Galve
authors: Carlos
authors: C
authors: Moreno
authors: Juan
authors: J
authors: Altarriba
authors: Raquel
authors: R
authors: Reina
authors: Carmen
authors: C
authors: García
authors: Pascual
authors: P
authors: López-Buesa
mesh_terms: D050156:Adipogenesis; D000483:Alleles; D000818:Animals; D005223:Fats / Q000032:analysis*; D005260:Female; D005511:Food Handling; D005838:Genotype; D007335:Insulin-Like Growth Factor II / Q000235:genetics / Q000378:metabolism*; D008297:Male; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry; D019655:Quantitative Trait, Heritable; D050151:Subcutaneous Fat / Q000737:chemistry; D013552:Swine / Q000235:genetics*
chemical_list: D005223:Fats; D007335:Insulin-Like Growth Factor II