Survival of Litopenaeus vannamei shrimp fed on diets supplemented with Dunaliella sp. is improved after challenges by Vibrio parahaemolyticus

Diana Medina Félix, José Antonio López Elías*, Ángel Isidro Campa Córdova, Luis Rafael Martínez Córdova, Antonio Luna González, Edilmar Cortes Jacinto, Nolberta Huerta Aldaz, Fernando Cano Mendoza, María Guadalupe Burboa Zazueta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Survival of Litopenaeus vannamei was evaluated during a Vibrio parahaemolyticus infection. This bacteria has been causing significant economic losses in the shrimp industry due to the appearance of early mortality syndrome (EMS), also known as acute hepatopancreatic necrosis disease (AHPND). Control of bacteria in ponds is difficult to achieve with antibiotics due to environmental infections and antibiotic resistance. New methods have been proposed to control and prevent the impact of bacterial infections. The physiological response indicated by plasma biochemical parameters in shrimp can determine their health and stress status. Meanwhile, shrimp immunology is the key factor in establishing strategies to control diseases. Immunostimulants are the best alternative to antibiotics to prevent or minimize disease damage, and at the same time, these stimulants improve the immune system in shrimp. Four diets containing 1.5, 2, 2.5 and 3% of Dunaliella sp. with high β-carotene content were tested in the present study. After 20 days of feeding, organisms were infected with V. parahaemolyticus. Protein, glucose, lactate, triglyceride and cholesterol levels, as well as activity of prophenoloxidase and phenoloxidase, were determined 48 h post-infection (hpi). Shrimp fed a diet with 3% Dunaliella sp. showed the highest survival. Glucose, cholesterol, and triglyceride levels, as well as prophenoloxidase and phenoloxidase activity, were not observed to be suitable indicators during this bacterial infection. The results indicated that the inclusion of Dunaliella sp. in diet increases survival in L. vannamei infected with V. parahaemolyticus.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalJournal of Invertebrate Pathology
Volume148
DOIs
StatePublished - Sep 2017

Bibliographical note

Publisher Copyright:
© 2017

Keywords

  • AHPND
  • Dunaliella sp.
  • EMS
  • Litopenaeus vannamei
  • Vibrio parahaemolyticus

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