The application of Dunaliella salina powder in dairy cows

The Dunaliella salina is a kind of unicellular eukaryote without cell wall,which is mainly used for extracting natural β-carotene and polysaccharides. The D. salina powder, which derives from the drying process of D. salina, plays a vital role in anti-oxidation, anti-virus, anti-tumor, and promotion of immune function. Currently, the applications of D. salina powder focused on human beings and rodents, but very few studies paid attention on dairy cows. We reviewed the regulation of rumen fermentation, oxidative stress, immune response, nutrient utilization and lactation performance by D. salina powder in dairy cows, aiming at providing references for dairy production.