GAS1: A New β-Glucan Immunostimulant Candidate to Increase Rainbow Trout () Resistance to Bacterial Infections With .

β-glucans are prebiotic and/or food additives used by the aquaculture industry to enhance the immune response of fish. Their efficiency may vary according to their origin and structure. In this study, the immunostimulant effects of two β-glucan types extracted from wild-type baker's yeast () and its null-mutant Gas1 were investigated.

Physiological and immune response of juvenile rainbow trout to dietary bovine lactoferrin.

Lactoferrin, a large multifunctional glycoprotein, is involved in many physiological functions but its immunomodulatory pathways are not well characterized in fish. The objective of the present study was to investigate the temporal effect of dietary bovine lactoferrin (BLf) at low (0.1%) and high (1%) on immunological organs of rainbow trout juveniles.