Multi-omics analysis reveals the mechanism of rosemary extract supplementation in increasing milk production in Sanhe dairy cows via the "rumen-serum-milk" metabolic pathway.

ABSTRACT: Rosemary extract (RE) has shown potential as a plant-derived feed additive, but its effects on Sanhe dairy cows are still unknown. In this study, 30 multiparous Sanhe dairy cows (days in milk 171 ± 17 days) with similar body condition were randomly divided into two groups: the RE group (n = 15) was fed the basal diet plus 20 g RE/d, and the CON group (n = 15) was fed only the basal diet. The experiment lasted for 57 days, including a one-week adaptation period. Compared with the CON group, milk yield (P = 0.022) increased significantly with RE supplementation, while milk fat (P = 0.071) also tended to increase. Milk urea nitrogen (P = 0.003) and serum urea nitrogen (P = 0.013) contents were significantly reduced in the RE group compared with the CO

SUBMITTER: Liu Z 

PROVIDER: S-EPMC12664099 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature