On the other hand, nutritional compounds such as [beta]-glucans ([beta]-1,3-Glucan Binding Protein (
BGBP) & Lipopolysaccharide Binding Protein (LPSBP9)), obtained from yeast and fungi cell walls (Raa, 1996), have been associated with a response system against pathogens by stimulating haemocytes phagocytosis and inducing degranulation, as well as activating the prophenoloxidase system (Vargas et al., 1996; Vargas-Albores & Yepiz-Plascencia, 2000).