mRNA abundances of (A) acyl-CoA oxidase 1 (ACOX1), (B) acyl-CoA oxidase 2 (ACOX2), (C) peroxisomal acyl-coenzyme A oxidase 1 (ACAA1), (D) catalase (CAT), (E) acyl-CoA dehydrogenase very long chain (ACADVL), (F) 3-hydroxyacyl-CoA dehydrogenase (HADH), (G) 3-ketoacyl-CoA thiolase (ACAA2), (H) peroxisome proliferator-activated receptor alpha (PPARA) in liver of heat-stressed (HS) and or pair-fed (PF) cows. Liver samples were obtained after ad libitum feeding in P1 at thermoneutral condition (P1 (TN-AL), black) and after 6 days (P2) of HS (red) or PF (blue) cows in the ante partum (ap) and post partum (pp) period, respectively. Data are from HSap n = 6, PFap n = 5, HSpp n = 6, PFpp n = 3 RNA samples. * P<0.05, † 0.05< P< 0.07.