The expression of PPARα, Acox1, Acox3 and CPT1 in the liver tissues was analyzed using Quantitative reverse transcription-polymerase chain reaction (RT-qPCR) and Western Blot (WB).<h4>Results</h4>Levels of serum triglycerides (TG) and free fatty acids (FFA) were significantly higher in IUGR rats compared to control rats from the early stages and remained elevated through to 90 days of age. This evidence concerns the gene ACOX3 and fetal growth restriction.