The g.4290 C>G Polymorphism in the <i>FADS2</i> Gene Modifies the Fatty Acid Profile of the <i>Pectoralis Superficialis</i> Muscle of Ross 308 Broiler Chickens
Urszula Kaczor,
Sebastian Sawicki,
Joanna Nowak,
Julia Gabryś,
Jakub Jurczyk,
Dorota Wojtysiak,
Katarzyna Połtowicz
Affiliations
Urszula Kaczor
Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Science, University of Agriculture in Kraków, 21 Mickiewicza Ave., 31-120 Cracow, Poland
Sebastian Sawicki
Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Science, University of Agriculture in Kraków, 21 Mickiewicza Ave., 31-120 Cracow, Poland
Joanna Nowak
Department of Poultry Breeding, National Research Institute of Animal Production, 32-083 Balice, Poland
Julia Gabryś
Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Science, University of Agriculture in Kraków, 21 Mickiewicza Ave., 31-120 Cracow, Poland
Jakub Jurczyk
Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Science, University of Agriculture in Kraków, 21 Mickiewicza Ave., 31-120 Cracow, Poland
Dorota Wojtysiak
Department of Genetics, Animal Breeding and Ethology, Faculty of Animal Science, University of Agriculture in Kraków, 21 Mickiewicza Ave., 31-120 Cracow, Poland
Katarzyna Połtowicz
Department of Poultry Breeding, National Research Institute of Animal Production, 32-083 Balice, Poland
The effect of the g.4290 C>G substitution in the FADS2 gene and g.285 C>T in the FABP4 gene on carcass quality, meat quality, and fatty acid profile of the pectoralis superficialis muscle of 238 male broiler chickens reared up to 45 days of age was analyzed. A significant influence of g.4290 C>G in the FADS2 gene on the pectoralis superficialis muscle fatty acid profile was demonstrated. Chickens with the GG genotype were characterized by the highest content of conjugated linoleic acid, amino acids, eicosapentaenoic acids, docosapentaenoic acid, docosahexaenoic acids. and the lowest value of the linoleic acid/alpha-linolenic acid ratio. The FABP4 polymorphism determined only the content of C18:1n-9, C18:2n-6 and docosahexaenoic acid. There was no effect of the studied genotypes on final body weight, carcass quality traits, or quality of broiler pectoral muscles.
