extremely significantp < 0.001
The distribution of methylation levels in DMRs indicated that the average methylation level of the liver was 0.43 to 0.62 during the neonatal and lactation periods, 0.56 to 0.65 during the adulthood and lactation periods, and 0.49 to 0.60 during neonatal and adulthood periods, with extremely significant differences ( p < 0.001).