Comparative efficacy of neem (Azadirachta indica) and non-neem supplemented biofloc media in controlling the harmful luminescent bacteria in natural pond culture of Litopenaeus vannaemei

Mandal, Amit; Das, S. K.

doi:10.1016/j.aquaculture.2018.04.006

Cited by 16 publications

(13 citation statements)

References 21 publications

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“…In 2018, around 1500 t of M. japonicus was produced by aquaculture [ 7 ] and serious outbreaks of diseases have often been reported in Japan [ 6 , 8 ]. Disease outbreaks in shrimp aquaculture are major causes of economic and production losses [ 9 ]. Among the various causes of these diseases, shrimp-pathogenic bacteria of the genus Vibrio are the most economically damaging, resulting in multibillion-dollar losses to the aquaculture industry [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Monomeric Components of Poly-hydroxybutyrate-co-hydroxyhexanoate on the Growth of Vibrio penaeicida In Vitro and on the Survival of Infected Kuruma Shrimp (Marsupenaeus japonicus)

Fukami

Takagi

Sonoda³

et al. 2021

Animals

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Here, we investigated the inhibitory effects of the biodegradable, water-insoluble polymer poly-hydroxybutyrate-co-hydroxyhexanoate (PHBH) and its two constituent monomers, the hydroxyalkanoic acids 3-hydroxybutyrate (3HB) and 3-hydroxyhexanoate (3HH), on the growth of the shrimp-pathogenic bacterium Vibrio penaeicida. In vitro experiments revealed that 3HH showed greater growth inhibitory activity than 3HB against V. penaeicida. In addition, the activities of hydroxyalkanoic acids were pH dependent, being greater at pH 6.0 than at pH 7.0. Investigation of the pH of the shrimp gut revealed a pH range of 5.9–6.7 (mean 6.29 ± SD 0.20), indicating that the physiological environment was suitable for 3HB and 3HH to exert their inhibitory activities against V. penaeicida. In vivo bacterial challenge experiments revealed that survival rates in kuruma shrimp (Marsupenaeus japonicus) infected by V. penaeicida were significantly increased in shrimp reared on feed containing PHBH (0.1%–5% w/w PHBH) compared with that in shrimp reared on standard diet alone. Supplementation with PHBH had no significant effects on three shrimp growth parameters: increase in body weight, daily feeding rate, and feed conversion ratio. These results suggest that supplementation of standard diet with PHBH will increase shrimp resistance to infection by V. penaeicida, thereby increasing shrimp aquaculture productivity.

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Section: Introductionmentioning

confidence: 99%

Effects of the Monomeric Components of Poly-hydroxybutyrate-co-hydroxyhexanoate on the Growth of Vibrio penaeicida In Vitro and on the Survival of Infected Kuruma Shrimp (Marsupenaeus japonicus)

Fukami

Takagi

Sonoda³

et al. 2021

Animals

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“…Therefore, the introduction of prebiotics to the biofloc is thought to propagate beneficial microbiota, not just in the water, but also in the host's intestine to counteract the potentially hazardous pathogens. Recent research has been undertaken based on this hypothesis, the results of which indicated that the introduction of functional feeds into the biofloc significantly improved water quality, animal development, immunity, and survivability (Mandal, Das, 2018;Qiao, Chen, Sun, Zhang, Zhang, Li, Li, 2020). Researching of the effects of watermelon rind powder (WMRP) within the biofloc represents an innovative and interdisciplinary strategy; yet to be fully investigated.…”

Section: Introductionmentioning

confidence: 99%

Administration of watermelon rind powder to Nile tilapia (Oreochromis niloticus) culture under biofloc system: Effect on growth performance, innate immune response, and disease resistance

et al. 2020

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“…Dinda et al (2019) reported that biofloc favored phosphorus mineralization and became limited in maintaining the balance between available nitrogen: phosphorus (N:P) beyond 0.065 mg L À1 . Biofloc contains rich bioactive compounds which increase the tolerance to stress and help in activating the antioxidant activity in shrimp (Babin et al, 2010) through probiotic activity (Mandal and Das, 2018). The presence of bioactive compounds and probiotic microbes in biofloc improve health and immune system of Oreochromis niloticus larvae and Litopenaeus vannamei juvenile (Xu and Pan, 2013;Ekasari et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The presence of bioactive compounds and probiotic microbes in biofloc improve health and immune system of Oreochromis niloticus larvae and Litopenaeus vannamei juvenile (Xu and Pan, 2013;Ekasari et al, 2015). Mandal and Das (2018) reported that the probiotic effect of Bacillus cereus and Lactobacillus sp. in biofloc caused the reduction if bioluminescence problem caused by pathogenic Vibrio sp.…”

Section: Introductionmentioning

confidence: 99%

Environmental amelioration in biofloc based rearing system of white leg shrimp (Litopenaeus vannamei) in West Bengal, India

Das

Mandal

2021

Aquat. Living Resour.

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The potential of biofloc media in in-situ environmental amelioration mediated through the removal of nitrogenous metabolites, reduce the dominance of disease-causing Vibrio to beneficial Bacillus community and reduction of costly commercial feed was investigated in white leg shellfish (Litopenaeus vannamei) farming. Three treatments viz. biofloc without neem + commercial feed (B), biofloc with neem +commercial feed (NB), only commercial feed without biofloc (F)and, one control (C) withno biofloc and no feed in triplicate was applied with a stocking density of 60 PL-20 m−3 in outdoor earthen ponds (1000 m3). Two biofloc media (C:N = 15–10:1) with and without neem leave extract were applied with reduction of feed supplement from 50% to 100%. The significant difference was observed in final body weight (33.82 ± 0.18 g) in neem based biofloc media than the other tested shrimp with the survival percentage above 87%. Superiority of biofloc based rearing system over the traditional feed based one was established as live weight gain was 28.48–137% more with a reduction of feed conversion ratio by 7.60% to 8.18% in the former. Moreover, feed cost was reduced both in B (8.1%) and NB (8.77%) compared to conventional feed −based culture system (F). The nutrient profile of floc and shrimp also improved as higher protein content was recorded in floc (18.65–19.63%) and shrimp (24.58–26.29%). The development of biofloc within the culture system resulted in cumulative increase of Bacillus population with concomitant decrease of luminous Vibrio population. The findings of the study strongly indicated that biofloc technology could be a potential tool of ecosystem approach towards in-situ environmental amelioration in shrimp farming ponds with substantial reduction of cost towards feed, aqua chemicals used for disease and environmental health management and other operational cost like water exchange.

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Comparative efficacy of neem (Azadirachta indica) and non-neem supplemented biofloc media in controlling the harmful luminescent bacteria in natural pond culture of Litopenaeus vannaemei

Cited by 16 publications

References 21 publications

Effects of the Monomeric Components of Poly-hydroxybutyrate-co-hydroxyhexanoate on the Growth of Vibrio penaeicida In Vitro and on the Survival of Infected Kuruma Shrimp (Marsupenaeus japonicus)

Effects of the Monomeric Components of Poly-hydroxybutyrate-co-hydroxyhexanoate on the Growth of Vibrio penaeicida In Vitro and on the Survival of Infected Kuruma Shrimp (Marsupenaeus japonicus)

Administration of watermelon rind powder to Nile tilapia (Oreochromis niloticus) culture under biofloc system: Effect on growth performance, innate immune response, and disease resistance

Environmental amelioration in biofloc based rearing system of white leg shrimp (Litopenaeus vannamei) in West Bengal, India

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