Current status of viral diseases in Indian shrimp aquaculture

Tandel, Gauravkumar M.; John, K. Riji; George, M. Rosalind; Jeyaseelan, M. J. Prince

doi:10.4149/av_2017_02_01

Cited by 34 publications

(21 citation statements)

References 38 publications

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“…The study proposes a three-year cyclic sustainable intercrop timeline design for farmers and entrepreneurs. Monoculture Shrimp farming in India and other Southeast Asian nations are frequently affected by viral disease outbreaks [8, 9], the present study was conducted to present a more stable coastal farming system to the farmers of the region.…”

Section: Introductionmentioning

confidence: 99%

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

et al. 2019

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Diversification of shrimp farming with marine finfish in a farmer participatory research model was attempted. The study is intended to find an economically viable finfish culture during the fallow period of shrimp farms. The Silver pompano, Trachinotus blochi i intercropped with Pacific white shrimp, Litopenaeus vannamei culture in coastal shrimp ponds was assessed for growth, survival, and economic viability. During the grow-out period of 100 days, fishes grew from 40.23 ± 1.40 g to 256.56 ± 1.08 g in weight and 12.83 ± 0.19 cm to 25.11 ± 0.09 cm in length. The daily weight gain (DWG) and daily length gain (DLG) were 2.16 g/day and 0.12 cm/day, respectively. Relative growth rate (RGR) and specific growth rate (SGR) recorded for weight was 537.80% in 100 days and 1.85% per day, respectively. Pompano has exhibited its sturdiness and adaptability to the land-based culture system as evidenced by an overall survival percentage of 89.8% including nursery and grow-out phases. The realized feed conversion ratio was 1.94. The culture period of 100 days is found to be enough to attain a desirable harvest size of 250 g. The projected production potential of the experimental demonstration farm of 4500 m 2 water spread area for culture was 16.2 tonnes/cycle with a benefit-cost ratio (BCR) of 1.34 over operational cost. The present participatory trial empirically proved the viability of Silver pompano as an intercrop in coastal shrimp ponds. Thus, the introduction of Pompano in shrimp ponds is recommended and can be promoted for sustainable intercropping with shrimp farming along the Indian coast for improving people’s livelihoods.

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Section: Introductionmentioning

confidence: 99%

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

et al. 2019

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“…The Pacific white shrimp, Penaeus vannamei, is one of the most important aquaculture shrimp species globally, accounting for nearly 80% or two-thirds of the total annual produce [1]. Unfortunately, the aquaculture industry suffers from various diseases and pathogenic infections caused by bacteria and viruses, which results in substantial economic losses [2,3]. Among shrimp bacterial diseases, acute hepatopancreatic necrosis disease (AHPND) is the most pathogenic and devastating disease that affects shrimp aquaculture [4].…”

Section: Introductionmentioning

confidence: 99%

The PirB toxin protein from Vibrio parahaemolyticus induces apoptosis in hemocytes of Penaeus vannamei

Zheng

Aweya

et al. 2021

Virulence

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Acute hepatopancreatic necrosis disease (AHPND) is a major debilitating disease that causes massive shrimp death resulting in substantial economic losses in shrimp aquaculture. The Pir toxin proteins secreted by a unique strain of Vibrio parahaemolyticus play an essential role in the pathogenesis of AHPND. At present, most studies on the effects of Pir toxin proteins in shrimp focus on digestive tissues or organs such as hepatopancreas, stomach, etc., with none on the immune organs. In the present study, two recombinant Pir toxin proteins (rPirA and rPirB) of V. parahaemolyticus were expressed with rPirB shown to enter shrimp hemocytes. Employing pull-down and LC-MS/MS analysis, GST-rPirB was found to interact with 13 proteins in hemocytes, including histone H3 and histone H4 and among which histone H4 had the highest protein score. Further analysis using GST pull-down and Far-Western blot analysis revealed that rPirB could interact with histone H4. In addition, using the purified nucleosome protein from Drosophila S2 cells, it was found that PirB protein could specifically bind to histones. When flow cytometry was applied, it was observed that the interaction between PirB and histones in shrimp hemocytes induces apoptosis, which results in the dephosphorylation of Serine 10 in histone H3. Collectively, the current study shows that in addition to its effect on the digestive tract of shrimp, the PirB toxin protein interacts with histones to affect the phosphorylation of histone H3-S10, thereby inducing apoptosis.

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“…Aquaculture, including shrimp farming, is the fastest-growing sector producing food of animal origin in the world [ 1 ]. Several emerging diseases, including acute hepatopancreatic necrosis disease (AHPND), viral covert mortality disease (VCMD), infection by Enterocytozoon hepatopenaei (EHP), and infection of shrimp hemocyte iridescent virus (SHIV), have impacted on the global shrimp aquaculture industry [ 1 , 2 , 3 , 4 , 5 ]. More recently, a novel disease called “translucent post-larvae disease” (TPD) or “glass post-larvae disease” (GPD) in Penaeus vannamei has become a rapidly growing threat to shrimp farming in China recently [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Infectious Agent of Translucent Post-Larva Disease (TPD) in Penaeus vannamei

et al. 2020

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A new emerging disease called “translucent post-larvae disease” (TPD) or “glass post-larvae disease” (GPD) of Penaeus vannamei, characterized by pale or colorless hepatopancreas and digestive tract, has become an urgent threat to the shrimp farming industry. Following this clue that treatment of an antibacterial agent could alleviate the disease, systematic investigation of the potential infectious agent of TPD was conducted using bacterial identification and artificial challenge tests to fulfill Koch’s postulates. A dominant bacterial isolate, Vp-JS20200428004-2, from the moribund individuals was isolated and identified as Vibrio parahaemolyticus based on multi-locus sequence analysis. However, Vp-JS20200428004-2 differed from the V. parahaemolyticus that caused typical acute hepatopancreatic necrosis disease. Immersion challenge tests revealed that Vp-JS20200428004-2 could cause 100% mortality within 40 h at a dose of 1.83 × 106 CFU/mL, and experimental infected shrimp showed similar clinical signs of TPD. The Vp-JS20200428004-2 could be re-isolated and identified from the experimental infected individuals. Moreover, histopathological analysis of diseased samples indicated that Vp-JS20200428004-2 caused severe necrosis and sloughing of epithelial cells of the hepatopancreas and midgut in shrimp individuals both naturally and experimentally infected. Our present results indicated that Vp-JS20200428004-2 is a highly virulent infectious agent associated with the TPD and deserves further attention.

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Current status of viral diseases in Indian shrimp aquaculture

Cited by 34 publications

References 38 publications

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

The PirB toxin protein from Vibrio parahaemolyticus induces apoptosis in hemocytes of Penaeus vannamei

Determination of the Infectious Agent of Translucent Post-Larva Disease (TPD) in Penaeus vannamei

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