kutumlarvae.A basal diet was
formulated by the use of common feed ingredients and the inclusion of Immunogen at the ratesof 0, 1, 1.5 and
2 g kg 1 leading to four experimental diets. Experimental diets were randomly assigned to one of 12 500L tanks,
having three replicates per diet.Inclusion of 1g kg 1 Immunogen improved final weight, feed conversion ratio
(FCR) and specific growth ratio (SGR) (p