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Supplementation of ex situ produced bioflocs improves immune response against AHPND in Pacific whiteleg shrimp (Litopenaeus vannamei) postlarvae
Situmorang, M.L.; Uawisetwathana, U.; Arayamethakorn, S.; Karoonuthaisiri, N.; Rungrassamee, W.; Haniswita, H.; Bossier, P.; Suantika, G. (2022). Supplementation of ex situ produced bioflocs improves immune response against AHPND in Pacific whiteleg shrimp (Litopenaeus vannamei) postlarvae. Appl. Microbiol. Biotechnol. 106(9-10): 3751-3764. https://dx.doi.org/10.1007/s00253-022-11966-3
In: Applied Microbiology and Biotechnology. Springer: Heidelberg; Berlin. ISSN 0175-7598; e-ISSN 1432-0614
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| Trefwoorden |
Penaeus vannamei Boone, 1931 [WoRMS]; Vibrio Pacini, 1854 [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Situmorang, M.L.
- Uawisetwathana, U.
- Arayamethakorn, S.
- Karoonuthaisiri, N.
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- Rungrassamee, W.
- Haniswita, H.
- Bossier, P.
- Suantika, G.
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| Abstract |
The emergence of Vibrio diseases, including acute hepatopancreatic necrosis disease (AHPND) caused by Vibrio spp., had resulted in heavy losses in global shrimp production. Biofloc technology is a closed aquaculture system developed as one of the sustainable solutions to increase system resilience in the shrimp industry. In this study, biofloc was formed externally (ex situ biofloc) with probiotics Bacillus sp. strain BME and Bacillus sp. strain BCE, diatom microalgae Chaetoceros calcitrans, and a consortium of nitrifying bacteria, in the ratio of 1:1:6:6 as a starter. The study showed that the ex situ biofloc supplementation in Pacific whiteleg shrimp (L. vannamei) postlarvae culture can increase the shrimp culture performance (shrimp survival and growth), reduce Vibrio counts in the water and shrimp body, and provide stimulation of the shrimp immune response through humoral immune responses, such as pattern recognition protein (C-type lectin) and melanization process (proPO). Overall, the results indicate that the supplementation of ex situ biofloc provided protection to shrimp under Vibrio infection, regardless of the timing of addition (before, simultaneously, or after addition of Vibrio sp. strain VPA). This suggests that the ex situ biofloc can be effective as a preventive and a supportive treatment against potential AHPND infection in L. vannamei postlarvae culture. Taken together, the ability of the ex situ biofloc to modulate immune-related gene expression and resistance of L. vannamei against potentially AHPND-causing Vibrio sp. strain makes it an effective aquaculture technology for infectious disease control in shrimp production with high-density and minimal water exchange culture. |
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