The same experimental group between different days and ages: the relative expression of TNF-α mRNA in thoracic tissue at 30 days of age in the CHF group and the BPs-H and BPs-L groups was lower than that at 60 days of age, and in the BPs-L group at 30 days of age was significantly lower than that at 60 days of age (p < 0.05). This evidence concerns the gene TNF and congestive heart failure.