VDR and congestive heart failure: For 60 days of age, the relative expression of VDR mRNA in leg cartilage tissue of the CHF group and BPs group was lower than that of the NC group, and the CHF-L group was significantly higher than the BPs-H and BPs-M group (p < 0.05), CHF-H group was significantly higher than the BPs-M group (p < 0.05).