The enhancement of the growth rate, intestinal health, expression of immune-related genes, and resistance against suboptimal water temperature in common carp (Cyprinus carpio) by dietary paraprobiotics

Yassine, Taha; Khalafalla, Malik M.; Mamdouh, Mohamed; Elbialy, Zizy I.; Salah, Abdallah S.; Ahmedou, Aly; Mamoon, Ahmed; El-Shehawi, Ahmed M.; Doan, Hien Van; Dawood, Mahmoud A.O.

doi:10.1016/j.aqrep.2021.100729

Cited by 21 publications

(14 citation statements)

References 48 publications

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“…Although the original definition of probiotics stated that the bacteria must be alive, the term now encompasses dead bacteria or their metabolites that serve as immunostimulants (Taoka et al, 2009). Heat-killed Lactobacillus plantarum at a concentration of 50−100 mg kg −1 increased growth rate, intestinal morphometry, immune and antioxidative related genes and showed high resistance to suboptimal water temperature stress in common carp (Yassine et al, 2021). Heat-inactivated Bacillus pumilus SE5 can effectively improve the growth performance and immune responses of Epinephelus coioides (Yan et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Along with live probiotics, para‐probiotics are gradually gaining popularity. Para‐probiotics are defined as " non‐viable microbial cells (intact or broken) or crude cell extracts that benefit human or animal consumers when administered in appropriate doses (orally or topically) (Yassine et al, 2021). " Additionally, para‐probiotics can make shrimp farming more convenient for farmers.…”

Section: Introductionmentioning

confidence: 99%

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Effects of different dietary preparations of Enterococcus faecalis F7 on the growth and intestinal microbiota of Pacific white shrimp ( Litopenaeus vannamei )

Cai

Liu

et al. 2022

Aquaculture Research

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A 28-day feeding trial was conducted to evaluate the effects of different dietary preparations of Enterococcus faecalis F7 (blank control (BC), dead bacteria (DB), live bacteria (EF), cell-free extract of E. faecalis F7 (BF) and E. faecalis F7 treated with lithium chloride (Li)) on growth and intestinal microbiota of Litopenaeus vannamei. Results indicated that incorporation of live E. faecalis F7 into diet significantly improved the growth of L. vannamei by increasing weight gain rate (WGR), specific growth rate (SGR) and reducing feed conversion ratio (FCR). High-throughput sequencing data showed that incorporation of various preparations of E. faecalis F7 into diet altered intestinal microbiota richness and diversity in L. vannamei. In particular, live E. faecalis F7 improved the health of shrimp by increasing the abundance of beneficial bacteria and reducing the abundance of detrimental bacteria in the gut tract. Moreover, stability of intestinal microbiota was maintained for more than 7 days when shrimps were fed on basic diet after administration of live E. faecalis F7 for 28 days. These results demonstrate that diet enriched with live E. faecalis F7 promotes the growth and modulates the intestinal microbiota in Pacific white shrimp (L. vannamei).

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of different dietary preparations of Enterococcus faecalis F7 on the growth and intestinal microbiota of Pacific white shrimp ( Litopenaeus vannamei )

Cai

Liu

et al. 2022

Aquaculture Research

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“…Brown trout (Salmo trutta) showed a higher diversity of egg-associated bacteria at elevated temperatures, likely affecting the initial larval microbial colonization during hatching which influences the development of the larval immune system [63]. In farmed fish, the application of immunostimulants may help to steer the gut microbiota towards a healthy community, to exert positive effects on fish immunity, and to increase disease resistance [64][65][66][67]. However, the administration of immunostimulatory compounds is not applicable in wild fish.…”

Section: (A) Temperaturementioning

confidence: 99%

Are fish immunocompetent enough to face climate change?

Franke,

Beemelmanns,

Miest

2024

Biol. Lett.

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Ongoing climate change has already been associated with increased disease outbreaks in wild and farmed fish. Here, we evaluate the current knowledge of climate change-related ecoimmunology in teleosts with a focus on temperature, hypoxia, salinity and acidification before exploring interactive effects of multiple stressors. Our literature review reveals that acute and chronic changes in temperature and dissolved oxygen can compromise fish immunity which can lead to increased disease susceptibility. Moreover, temperature and hypoxia have already been shown to enhance the infectivity of certain pathogens/parasites and to accelerate disease progression. Too few studies exist that have focussed on acidification, but direct immune effects seem to be limited while salinity studies have led to contrasting results. Likewise, multi-stressor experiments essential for unravelling the interactions of simultaneously changing environmental factors are still scarce. This ultimately impedes our ability to estimate to what extent climate change will hamper fish immunity. Our review about epigenetic regulation mechanisms highlights the acclimation potential of the fish immune response to changing environments. However, due to the limited number of epigenetic studies, overarching conclusions cannot be drawn. Finally, we provide an outlook on how to better estimate the effects of realistic climate change scenarios in future immune studies in fish.

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“…The following growth parameters were estimated according to Yassine et al (2021): Weight gain (%) = (Final weight -Initial weight) × 100/Initial weight. Specific growth rate (SGR; % day -1 ) = (Ln (final weight) -Ln (initial weight) × 100)/t (in days), where Ln is the natural logarithm reading, and duration is 70 days of feeding.…”

Section: Growth Performance Parameters and Somatic Indicesmentioning

confidence: 99%

Exploring the multimodal role of Cnicus benedictus extract in the modulation of growth, hematobiochemical, histopathological, antioxidative performance, and immune-related gene expression of Oreochromis niloticus challenged with Aeromonas hydrophila

et al. 2022

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This study explored the growth efficiency and the intracellular pathways by which Cnicus benedictus extract (CBE) acts. It investigated the antioxidant effects and efficacy of CBE as a fish supplement in attenuation of Aeromonas hydrophila in Oreochromis niloticus fish. Mono-sex Nile tilapia fish (n = 225) were randomly allocated to five groups in triplicate aquaria (n = 3 tanks per group, 15 fish per tank, with 120 L of water per tank) with a daily water exchange rate of 20%. After adaption for 2 weeks and body weight measuring, the experimental groups were fed isonitrogenous and isocaloric diets with different dosages of the ethanolic extract of C. benedictus for 10 weeks. The five groups were identified as the control group (CBE0.0), which was fed on the basal diet, while the second (CBE0.1), the third (CBE0.2), the fourth (CBE0.4), and the fifth (CBE0.6) groups were fed the basal diet supplemented with 0.1%, 0.2%, 0.4%, and 0.6% of C. benedictus extract, respectively. After the 10-week feeding trial was completed, the fish were inoculated with the PCR-identified pathogenic A. hydrophila in a challenge trial which lasted 15 days. A. hydrophila, one of the septicemic bacteria, causes severe economic losses, high mortality rates, and hemorrhages in Nile tilapia and other cultured freshwater fishes worldwide. The CBE was found to significantly increase the body mass, weight gain, and the specific growth rate, as well as the protein efficiency ratio of the fish. Increased survival percentage, accompanied by post challenge lymphocytosis with decreased liver enzyme levels, increased total protein, and improved kidney function markers were also seen. Additionally, CBE supplementation showed significant increases in phagocytic activity, phagocytic index, and lysosomal activity post challenge, accompanied by increases in antioxidant activity and the mRNA expression of cytokines genes hsp70 and tlr7 mRNA. The desirable effects of CBE treatment were confirmed by a histopathological examination of the height of intestinal villi and enterocytes lining the middle intestine and increases in the size of liver cells. We conclude that CBE increases the growth performance and modulates the antioxidant, inflammatory, stress, and immune-related genes in Nile tilapia. Moreover, the dietary inclusion of 0.42–0.47% CBE showed a better protective effect with the A. hydrophila challenge.

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The enhancement of the growth rate, intestinal health, expression of immune-related genes, and resistance against suboptimal water temperature in common carp (Cyprinus carpio) by dietary paraprobiotics

Cited by 21 publications

References 48 publications

Effects of different dietary preparations of Enterococcus faecalis F7 on the growth and intestinal microbiota of Pacific white shrimp ( Litopenaeus vannamei )

Effects of different dietary preparations of Enterococcus faecalis F7 on the growth and intestinal microbiota of Pacific white shrimp ( Litopenaeus vannamei )

Are fish immunocompetent enough to face climate change?

Exploring the multimodal role of Cnicus benedictus extract in the modulation of growth, hematobiochemical, histopathological, antioxidative performance, and immune-related gene expression of Oreochromis niloticus challenged with Aeromonas hydrophila

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