Supplementation of Organic Selenium to Improve Inclusion Level of Plant-derived Proteins in the Diets of Two Commercially Important Marine Carnivorous Finfish Species

Abstract

Effective dietary inclusion levels of plant ingredients for carnivorous marine finfish species are relatively low due to the lack of trace mineral including selenium, and the presence of antinutritional factors such as phytic acid. Dietary supplementation of organic selenium and fermentation of soybean meal and lupin meal with baker’s yeast Saccharomyces cerevisiae resulted in a higher inclusion level of plant-based ingredients after a series of laboratory trials involving yellowtail kingfish and barramundi were conducted.