The efficacy of a commercial β-glucan preparation, EcoActiva™, on stimulating respiratory burst activity of head-kidney macrophages from pink snapper (Pagrus auratus), Sparidae

Cook, Mathew T.; Hayball, Peter J.; Hutchinson, Wayne; Nowak, Barbara F.; Hayball, John D.

doi:10.1006/fsim.2001.0343

Cited by 64 publications

(41 citation statements)

References 28 publications

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“…1.13 ± 0.12 1.14 ± 0. by lower dose of CYG have been reported previously (Ai et al, 2007, Cook et al, 2001, Ortuño et al, 2002, Rodríguez et al, 2009). Also, Bagni et al (2005) reported that short term (15 days) administration of CYG (MacroGaad; 0.1%) elevated serum lysozyme activity of Dicentrachus labrax.…”

Section: Discussionsupporting

confidence: 53%

EFFECTS OF DIETARY COMMERCIAL YEAST GLUCAN ON INNATE IMMUNE RESPONSE, HEMATOLOGICAL PARAMETERS, INTESTINAL MICROBIOTA AND GROWTH PERFORMANCE OF WHITE FISH (Rutilus frisii kutum) FRY

Rufchaie¹,

Hoseinifar²

2014

CJF

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This study investigates the effects of different levels of commercial yeast glucan (CYG) on innate immune response, hematological parameters, intestinal microbiota, growth performance and survival rate of white fish (kutum) fry. Specimens (1.1 ± 0.15 g) were randomly allocated into 15 tanks (100 L) at a density of 25 fish per tank and triplicate groups were fed either a basal control diet (0% CYG) or a basal diet supplemented with yeast (0.5, 1, 1.5 or 2% CYG) for 60 days. All dietary CYG levels significantly increased the innate immune responses (IgM levels and lysozyme activity) (P < 0.05) and the highest survival was observed in the 1 and 1.5% CYG group. Compared to the control group, CYG had no effects on RBC, Hct and Hb (P > 0.05), but WBC levels were significantly higher in CYG fed fish (P < 0.05). Microbiological assessment indicated that the viable culturable autochthonous and lactic acid bacteria (LAB) levels significantly elevated in 0.5 and 1% treatments. Our results indicated that low levels of dietary CYG (0.5 and 1 %) improved growth performance, body protein levels and survival rate compared to the control treatment (P < 0.05). These results indicate that CYG stimulates innate immune response, improves growth performance and modulates intestinal microbiota of kutum fry. Thus, we suggest that low level CYG may be used as a beneficial dietary supplement in kutum fry culture.

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Section: Discussionsupporting

confidence: 53%

EFFECTS OF DIETARY COMMERCIAL YEAST GLUCAN ON INNATE IMMUNE RESPONSE, HEMATOLOGICAL PARAMETERS, INTESTINAL MICROBIOTA AND GROWTH PERFORMANCE OF WHITE FISH (Rutilus frisii kutum) FRY

Rufchaie¹,

Hoseinifar²

2014

CJF

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“…This is most likely due to a lack of commercial development of many of these species and a limited understanding of the specifics of their host defence mechanisms [8]. In fact, apart from our own in vitro studies of the e#ects of EcoActiva on macrophage activity [10], there seems to be no reference to the use of immunostimulants on species of finfish from the Southern Hemisphere, many of which are currently subjected to intensive aquaculture.…”

Section: Introductionmentioning

confidence: 97%

Administration of a commercial immunostimulant preparation, EcoActiva™ as a feed supplement enhances macrophage respiratory burst and the growth rate of snapper (Pagrus auratus, Sparidae (Bloch and Schneider)) in winter

Cook

Hayball

Hutchinson

et al. 2003

Fish & Shellfish Immunology

Self Cite

133

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“…It was found that, similarly to the results obtained in previous studies, R20, which is a rich source of vitamin C and lycopene, had an effect on hematological and immunological parameters. On the other hand, in R30, which included the highest dose of rosehip, the decrease observed in hematological and immunological parameters were in line with the immunosuppressive effects of overdoses of immunostimulants used in different studies on immune parameters (Cook et al, 2001). Shahkar et al (2015), studied the effects of different doses of vitamin C on the hematological parameters and the non-specific immune response in Japanese eels.…”

Section: Discussionmentioning

confidence: 80%

“…For the effective use of immunostimulants, timing, dosage, method of administration and the health status of the fish need to be taken into consideration (Barman et al, 2013). Cook et al (2001) reported that lower doses of β-1.3/1.6 glucan are an important immunostimulant induced immune response, whereas overdoses (1.0%, 2.0%) caused immunosuppression. In studies on natural products with immunostimulant properties, it has been reported that the lowest doses of these products caused the highest NBT activity and this result was supported by lymphocyte and eosinophil cell counts (Jeney et al, 1997;Şahan et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

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Şahan¹,

Duman²,

COLAK³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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The effect of the Yersinia ruckeri infection in the different tissues of 225 rainbow trout (Oncorhynchus mykiss) fed with rosehip (Rosa canina) was researched by evaluating a range of factors such as hematological and histopathological findings, non-specific immune parameters, liver antioxidant parameters, and then determined mortality and relative percentage survival (RPS) rates.The study comprises control groups (C+, C−) and rosehip experimental groups (REGs): R10 (10%), R20 (20%) and R30 (30%). Following the 50-day feeding period, the fish were infected with Y. ruckeri and then blood, liver, spleen and kidney samples were taken. RBC, WBC, Hb, Hct and RBC indices, non-specific immune parameters, NBT, phagocytic activity and leukocyte formulas all significantly increased in R20 compared to other groups. Antioxidant parameters SOD, CAT and GSH values increased in the R20 and R30 groups, and the lowest RPS value was detected in R30 at 26.31%, while it increased in the R20 group to 42.09%. R30 showed no significant hematological and immunological effects, however, the immune cells were suppressed. In this research, R20 was determined to be the ideal dose, taking into account both health indicators and hematological parameters, as a defense mechanism against Y. ruckeri, showing the best antibacterial and antioxidant effects.

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The efficacy of a commercial β-glucan preparation, EcoActiva™, on stimulating respiratory burst activity of head-kidney macrophages from pink snapper (Pagrus auratus), Sparidae

Cited by 64 publications

References 28 publications

EFFECTS OF DIETARY COMMERCIAL YEAST GLUCAN ON INNATE IMMUNE RESPONSE, HEMATOLOGICAL PARAMETERS, INTESTINAL MICROBIOTA AND GROWTH PERFORMANCE OF WHITE FISH (Rutilus frisii kutum) FRY

EFFECTS OF DIETARY COMMERCIAL YEAST GLUCAN ON INNATE IMMUNE RESPONSE, HEMATOLOGICAL PARAMETERS, INTESTINAL MICROBIOTA AND GROWTH PERFORMANCE OF WHITE FISH (Rutilus frisii kutum) FRY

Administration of a commercial immunostimulant preparation, EcoActiva™ as a feed supplement enhances macrophage respiratory burst and the growth rate of snapper (Pagrus auratus, Sparidae (Bloch and Schneider)) in winter

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