책임운영기관 농촌진흥청 국립축산과학원 (로고)

Simple Summary: Recently, probiotics and plant extracts have been used as alternatives to antibiotics in livestock systems. Extracts of various plants have been shown to enhance digestion, increase intestinal immunity, and affect nutrient utilization and metabolism in ruminants. However, the physiological effects of plant extracts are diverse and complex, and the exact underlying mechanism has not yet been elucidated. Resveratrol is a polyphenolic substance produced when plants are exposed to adverse environments, such as fungi and pests. It has antitoxic properties that constitute plant self-defense and antioxidant properties that inhibit fatty acid oxidation. Although the metabolism of resveratrol in the rumen is unknown, resveratrol and its metabolites may play an important role in manipulating rumen bacteria. We show that feeding resveratrol to ruminants affects their digestion and immunity. The health and immunity of young ruminants can affect disease pathogenesis and long-term fattening. We believe that healthy calves could grow stably without losing energy due to disease, which would improve their growth and boost their immunity.