<p>Transcriptomic differences between the two lines were validated by qPCR at 132 and 74 days of age (onset of the growing period). For values related to microarray, the highest P-value is reported when several probes are differentially expressed for a unique gene (*P < 0.05; **P < 0.01; ***P<0.001). Fold change value is expressed as the expression ratio of low RFI to high RFI samples; ratio was inversed and preceded by a minus sign for value less than 1 (i.e., a ratio of 0.5 is expressed as -2). <i>CD40</i>, tumor necrosis factor receptor superfamily member 5; <i>GPX3</i>, glutathione peroxidase 3; <i>OAZ3</i>, ornithine decarboxylase antizyme 3; <i>DGAT2</i>, diacylglycerol O-acyltransferase 2; <i>NMI</i>, N-myc interactor; <i>TRAF6</i>, TNF receptor-associated factor 6; <i>SLPI</i>, secretory leukocyte peptidase inhibitor; <i>PSEN1</i>, presenilin 1.</p
