Free ferulic acid uptake in lactating cows

Area of Science:

• Animal Science
• Nutritional Biochemistry
• Food Science

Background:

• Ferulic acid (FRA) is a phenolic compound found in plants, known for its antioxidant and anticancer properties.
• Research aims to release FRA from lignin to enhance ruminant feed digestibility.
• Investigating FRA transfer into milk is crucial for understanding its potential bioactivity in dairy products.

Purpose of the Study:

• To investigate the transfer of orally administered ferulic acid (FRA) into the milk of dairy cattle.
• To determine the physiological transfer rate and time course of FRA in various biological matrices.
• To assess the impact of FRA supplementation on milk production and composition.

Main Methods:

• A crossover design study involving six Holstein cows.
• Administration of a single 150 g dose of pure FRA powder.
• Intensive sampling of plasma, urine, feces, rumen fluid, and milk over 36 hours post-dosage.
• Analysis of FRA concentrations in all collected samples.

Main Results:

• Oral ferulic acid (FRA) was successfully transferred into dairy cow milk.
• FRA concentration in rumen fluid, plasma, urine, and milk increased post-dosage and returned to baseline levels over time.
• No significant effects of FRA administration on dry matter intake, milk yield, or milk composition were observed.

Conclusions:

• Orally ingested ferulic acid (FRA) is transported into bovine milk.
• Physiological transfer of FRA from the rumen to milk occurs within approximately 6.5 hours.
• Further research is needed to confirm the bioavailability and bioactivity of FRA in milk.