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Keywords:

  • Yeast;
  • Penaeus monodon ;
  • Rhodotorula minuta ;
  • Immunostimulants;
  • Vibriosis

Abstract

This study attempted to assess the efficacy of mangrove-derived marine yeasts as a source of immuno-stimulant in the tiger shrimp, Penaeus monodon. The shrimp was fed on the diets in supplementation with yeast biomass at 10% for a period of 15 days and then challenged with the pathogenic Vibrio cholerae. The animals were assessed for immune responses in terms of total haemocyte counts, phenol oxidase and endobiotics. Among the yeasts tested, Rhodotorula minuta was found to have high immunostimulatory effect in the shrimps especially after challenge with the pathogenic vibrio.