Effect of anthocyanin rich black sugarcane on milk production and antioxidant capacity in lactating dairy cows

This study aimed to explore the effect of anthocyanin-rich black sugarcane on milk production, plasma antioxidant capacity, and the storage period DPPH scavenging capacity of milk in lactating dairy cows. Sixteen lactating dairy cows were stratified and randomly assigned into two balanced dietary groups, namely Anthocyanin-rich black sugarcane (AS), and Napier grass (NG). The AS group demonstrated a significant decrease (p < 0.05) in roughage intake, total dry matter intake, and nutrient intake. Blood glucose concentration was significantly greater in the AS group compared to the NG group. Additionally, the AS group had a significantly higher superoxide dismutase inhibition rate and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging capacity in plasma compared to the NG group. Furthermore, the DPPH scavenging capacity in the AS group was significantly elevated (p < 0.05) after 3 d of storage period. The NG group showed a significant decrease (p < 0.05) in DPPH scavenging capacity as the storage time extended. The incorporation of AS in the diet of lactating dairy cows is posited to enhance antioxidant performance, evidenced by an elevation in plasma antioxidant capacity. Additionally, AS may bestow the added benefit of preserving milk quality by augmenting the milk intrinsic DPPH scavenging capacity during storage period.