The effects of two dietary synbiotics on growth performance, hematological parameters, and nonspecific immune responses in Japanese Eel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43909080" target="_blank" >RIV/60076658:12520/24:43909080 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/aah.10212" target="_blank" >https://doi.org/10.1002/aah.10212</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/aah.10212" target="_blank" >10.1002/aah.10212</a>
Alternative languages
Result language
angličtina
Original language name
The effects of two dietary synbiotics on growth performance, hematological parameters, and nonspecific immune responses in Japanese Eel
Original language description
ObjectiveFeed additives have attracted increased attention in aquaculture due to their ability to modulate fish gut microbiota, resulting in improved fish growth and immunity. This study assessed the effects of two synbiotics in Japanese Eel Anguilla japonica: Bacillus subtilis with mannooligosaccharides (MOS) and Enterococcus faecium with fructooligosaccharides (FOS).MethodsSix diets, including a control (CON) diet, oxytetracycline (OTC) diet, and four synbiotic diets (B. subtilis at 1 x 106 or 1 x 107 colony-forming units [CFU]/g with MOS at 5 g/kg [BS6MO and BS7MO; collectively, BSMOS diets] and E. faecium at 1 x 106 or 1 x 107 CFU/g with FOS at 5 g/kg [EF6FO and EF7FO; collectively, EFFOS diets]), were fed to triplicate groups of 20 fish (average weight +/- SD = 6.00 +/- 0.07 g) for 8 weeks.ResultFish fed the BSMOS diets showed significantly higher weight gain, specific growth rate (SGR), and feed efficiency compared to fish fed the CON and OTC diets, but the values were not significantly different from those of fish fed the EFFOS diets. Weight gain and SGR of fish that were given EFFOS diets were not significantly different from those of fish fed all other diets. Fish fed the OTC diet showed a higher mean aspartate aminotransferase level, although the difference was not statistically significant. The myeloperoxidase activity of fish fed the BS7MO diet was significantly higher than those of fish receiving all other diets, and the superoxide dismutase activity of fish fed the BS7MO diet was also significantly higher than that of fish fed the EF7FO diet. Overall, the BSMOS synbiotic diets were significantly more effective than the CON diet in enhancing fish survival against a Vibrio anguillarum challenge.ConclusionOur findings suggest that synbiotics can be a preferable alternative to antibiotics in aquaculture. The Japanese Eel is an economically important fish in Korea, but its aquaculture is fraught with disease challenges and slow growth. By adding synbiotics (blends of prebiotics and probiotics) to the Japanese Eel's diet, growth and immunity were improved, suggesting a potential alternative to antibiotics.Impact statement
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Aquatic Animal Health
ISSN
0899-7659
e-ISSN
1548-8667
Volume of the periodical
36
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
136-150
UT code for WoS article
001209414400001
EID of the result in the Scopus database
2-s2.0-85191809646