Dietary L-selenomethionine supplementation is known to offer a way to reduce performance loss under stress, such as crowding conditions (Küçükbay et al. 2008). A recent study in Nile tilapia, performed at the Mahasarakham University in Thailand, showed increased performance, improved innate immune response and high protection against pathogenic pressure (Streptococcus agalactiae).
L-selenomethionine (Excential Selenium 4000, Orffa Additives BV, The Netherlands) was tested and validated by independent researchers around the world in peer-reviewed publications (eg Berntssen et al. 2018; Silva et al. 2019) and proven to be effective in increasing the selenium and antioxidant status of fish, even under challenging conditions. Using L-selenomethionine in your diets will result in improved performance, immune function and higher economical return for your aquacultural production!