PEER REVIEW PUBLICATION ON THE BENEFITS OF HYDROXY-SELENOMETHIONINE (SELISSEO®) IN RAINBOW TROUT BROODSTOCK TO IMPROVE OXIDATIVE STATUS AND PERFORMANCE OF THE PROGENY
Selenium plays a very important role in antioxidant defense, with the organic forms being the most effective. A trial by Wischhusen et al., 2019 and conducted at INRA (France) evaluated the effect of dietary selenium on reproductive performance, selenium transfer and antioxidant status in rainbow trout.
Over a six-month period prior to spawning, broodstocks were fed one of three diets containing a basal level of selenium (0.3 ppm), or a supplemented level of 0.3 ppm either as OH-SeMet (Selisseo®) or sodium selenite.
Results showed significantly higher number of spawnings in broodstock supplemented with Selisseo® along with a high survival of progeny from fertilization to swim-up fry. Enhanced deposition of selenium in muscle and liver was found in females supplemented with Selisseo®, thus reinforcing the antioxidant defense mechanisms to better cope with the stress associated to spawning