Adjuvant effects of medicinal herbs and probiotics for fish vaccines

Soltani, Mehdi; Lymbery, Alan J.; Song, Seong Kyu; Shekarabi, Seyed Pezhman Hosseini

doi:10.1111/raq.12295

Cited by 46 publications

(23 citation statements)

References 77 publications

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“…2019; Soltani et al . 2019). Most biological controls designated for fish pest and disease management are usually advocated as ‘fish‐friendly’ choices, albeit their slow mode of action than chemical therapeutics (some of which might sooner or later face ban in Europe; Lieke et al .…”

Section: Resultsmentioning

confidence: 99%

“…Some options are much more 'applied' than vaccination in intensive fish culture units, owing to their broad-spectrum effect and flexibility in the application (through feed or in water directly). Beneficial live microorganisms called probiotics, their growth substrates called prebiotics (in a combination called 'symbiotic') or simply immunostimulants, and herbal extracts through feed have much wider application in fish disease management (reviewed in Dawood et al 2019;Soltani et al 2019). Most biological controls designated for fish pest and disease management are usually advocated as 'fish-friendly' choices, albeit their slow mode of action than chemical therapeutics (some of which might sooner or later face ban in Europe; Lieke et al 2019).…”

Section: B Physical and Mechanical Control Measuresmentioning

confidence: 99%

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Integrated pest and disease management in aquaponics: A metadata‐based review

Folorunso

Roy

Gebauer

et al. 2020

Reviews in Aquaculture

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Aquaponics has the potential to produce sustainable, high‐quality food through integration of hydroponics and aquaculture, but its commercialization is stalled by bottlenecks in pest and disease management. We reviewed integrated pest and disease management steps and techniques in hydroponics to qualify as suitable techniques for different aquaponic designs. Non‐chemical prophylactic measures are highly proficient for pest and disease prevention in all designs. Still, the use of chemical control methods remains highly complicated for all systems. We simulated 10–20% runoff concentrations of 9 pesticides in the common UVI design and compared them with NOEC, LC50 of fish. Endosulfan seems most toxic with runoff AI (20.7 μg L−1) exceeding LC50 (10.2 μg L−1) and NOEC (0.05 μg L−1). At 20% runoff, most chemical pesticides pose risks in aquaponic systems. Natural pesticides were also discussed as potential alternatives with low acute toxicity to fish, but little is known about their effects on water and bacteria. While insecticides and herbicides are replaceable by well‐established commercial biocontrol measures, fungicides and nematicides would still be relevant in aquaponics due to low efficiency of alternatives (e.g. natural enemies, entomopathogenic fungus). Monitoring and cultural control are the first approaches to contain pest population below the action threshold. Biological controls, in general, are adaptable to a larger extent. Further studies are required on how to utilize indigenous microbial community in aquaponics (dominated by Proteobacteria; effective at ~103–109 CFU mL−1) as a frontline defence.

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Section: Resultsmentioning

confidence: 99%

Section: B Physical and Mechanical Control Measuresmentioning

confidence: 99%

Integrated pest and disease management in aquaponics: A metadata‐based review

Folorunso

Roy

Gebauer

et al. 2020

Reviews in Aquaculture

View full text Add to dashboard Cite

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“…Unfavorable rearing conditions can expose fish to a variety of pathogenic microorganisms, which cause immunological parameters to act as key components in managing with infections (Hai, ; Soltani, Lymbery, Song, & Hossein‐Shrkarabi, ; Yunxia, Jianzhong, & Guoliang, ). Chemotherapeutics such as antibiotics have been used for prevention and control of infectious agents in aquaculture for many years (Sakai, ), however, antibiotics treatment may not be a sustainable approach due to an increase in bacterial resistance and the negative effects on the native microflora of fish (Balfry & Higgs, ; Cabello, ).…”

Section: Introductionmentioning

confidence: 99%

Growth performance, immune response and disease resistance of rainbow trout (Oncorhynchus mykiss) fedThymus vulgarisessential oils

et al. 2019

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Efficacy of Thymus vulgaris essential oils was assessed on growth, immune response and disease resistance of rainbow trout (Oncorhynchus mykiss). Fish weighing 10 g were fed with dietary supplemented of the oils at 0.5, 1.0 and 2.0 ml/kg feed for 2 months. Fish fed with the oils at 0.5 ml/kg feed demonstrated a better weight gain and specific growth rate, compared to other treatments (p < .05). Fish fed with 1.0 ml the oils showed the highest up‐regulation of complement component 3 (C3) and (cluster of differentiation 4) (CD4) genes expression (p < .05), while lysozyme gene expression level significantly increased in fish fed with 2.0 ml of the oils. In addition, at the end of the experiment, the expression of C3 and CD4 genes were significantly up‐regulated in fish fed with 1.0 and 2.0 ml of the oils, while IL‐1ß and lysozyme genes expression levels were significantly decreased in fish fed 2.0 ml oils, towards the end of the trial (p < .05). There was a fluctuation in the levels of Alanine aminotransferase, Aspartate aminotransferase and Alkaline phosphatase in all treatments during the experiment. When treated fish were challenged with Aeromonas hydrophila, the highest survival rate was observed in 0.5 ml/kg treatment, followed by 2 and 1 mg/kg treatments. Overall, these findings demonstrated that dietary administration of T. vulgaris oils especially at 0.5 mg/kg feed can be considered as a potential component for enhancing of the growth, immune responses and disease resistance of trout against motile Aeromonas septicemia caused by A. hydrophila.

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“…In this context, reports are available indicating the use of probiotics to reduce disease outbreaks by enhancing immunological system (Dias et al, ; Soltani, Ghosh, et al, ; Soltani, Lymbery, Song, & Hosseini‐Shekarabi, ). The use of probiotics is a strategy to increase production of fish, modulating the intestinal microbiota (Mouriño et al, ; Standen et al, ), improving the immune response (Giri, Sukumaran, & Oviya, ; Jatobá Moraes, Rodrigues, Vieira, & Pereira, ; Moraes et al, ; Mouriño et al, ) and improving growth performance (Dias et al, ; Giri et al, ; Hamdan, El‐Sayed, & Mahmoud, ), during diverse stages of growth (Hamdan et al, ; Jha, Bhujel, & Anal, ; Nakandakare et al, ; Ridha & Azad, ).…”

Section: Introductionmentioning

confidence: 99%

Effects of anEnterococcus faecium‐based probiotic on growth performance and health of Pirarucu,Arapaima gigas

et al. 2019

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Intensive fish farming has resulted in an increased concern for disease outbreaks. Probiotic use is one of the strategies being developed to improve fish health and productivity. Measures of probiotic colonization, growth performance, haematological characteristics and parasite load were used to evaluate the effect of diets supplemented with Enterococcus faecium on growth and health of Arapaima gigas juveniles. A completely randomized design with four treatments (diet with E. faecium at 1 × 106 CFU/g and 1 × 108 CFU/g, control diet and diet with the culture medium MRS) and three replicates was used. Ninety‐six Arapaima juveniles were distributed in 12 cages fed with the specified diet for 68 days. Colonization of the intestinal tract by lactic acid bacteria reduced the total number of heterotrophic bacteria in fish fed with probiotics compared to controls. Fish fed a supplemented diet containing 1 × 108 CFU/g presented higher values of weight gain, survival and fish growth uniformity, and lower values of feed conversion ratio. The prevalence of Trichodina sp. could have affected the survival of fish in the control group. Reduction in parasite load and an increase in haematocrit, the number of erythrocytes, thrombocytes, neutrophils and monocytes were also observed in fish fed the diet containing 1 × 108 CFU/g. Enterococcus faecium presented a probiotic effect in A. gigas juveniles and can be recommended for use at a concentration of 1 × 108 CFU/g to modify the gut microbiota, improve growth performance and haematology and reduce parasitic load.

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Adjuvant effects of medicinal herbs and probiotics for fish vaccines

Cited by 46 publications

References 77 publications

Integrated pest and disease management in aquaponics: A metadata‐based review

Integrated pest and disease management in aquaponics: A metadata‐based review

Growth performance, immune response and disease resistance of rainbow trout (Oncorhynchus mykiss) fedThymus vulgarisessential oils

Effects of anEnterococcus faecium‐based probiotic on growth performance and health of Pirarucu,Arapaima gigas

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