RT Journal Article SR Electronic A1 Mikolášová, Renata A1 Urban, Tomáš T1 Variability in the leptin, leptin receptor and heart fatty acid binding protein genes in relationship with meat quality traits in pigs JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2014 VO 53 IS 4 SP 87 OP 94 DO 10.11118/actaun200553040087 UL https://acta.mendelu.cz/artkey/acu-200504-0010.php AB The leptin (LEP-HinfI), leptin receptor (LEPR-HpaII) and heart fatty acid binding protein (H-FABP-HinfI) genes and their genotypes combination (LEP-HinfI *LEPR-HpaII) were tested for associations with the pH<sub>1</sub>, pH<sub>24</sub>, myoglobin content (mg/100 g), intramuscular fat content (%) and remission (%). The genotypes were determined in Large White, Landrace and Duroc breeds (n = 106, 56 and 4, respectively). The allele frequencies were: LEP-HinfI: C = 0.133 T = 0.867; LEPR-HpaII: A = 0.331 B = 0.669; H-FABP-HinfI: H = 0.745 h = 0.255. The populations of breeds were in the genetic equilibrium according to the χ<sup>2</sup> test in the tested loci. The combinations of LEP-HinfI and LEPR-HpaII were significantly associated with the pH<sub>24</sub> and remission. The H-FABP-HinfI locus was significantly associated with intramuscular fat content.