<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A few reports indicate the beneficial effects of organic acids and their salts on anti-infective immunity in fish species. In the role of immunostimulants, inorganic acids may prove to be a much cheaper alternative to their organic equivalents. However, no report has described the effect of using inorganic acid as a feed additive on fish immunity. This study is the first attempt to evaluate the effect of hydrochloric acid (HCl) as a fish feed supplement on cellular immunity in the stomachless fish, cypriniform vimba bream, <italic>Vimba vimba</italic> (L.). Two groups, three replicates each, of juvenile vimba were fed a commercial dry fish diet or its variant containing a 1.5% additive of HCl for 55 days. The experiment was conducted in a recirculating aquaculture system at 25°C. Mortality, growth, condition factor, feed conversion ratio, respiratory burst activity (RBA), potential killing activity (PKA), and the proliferative response of head kidney lymphocytes were determined for both groups at the end of the experiment and compared. The PKA was higher in the group fed the diet with HCl. For all other parameters studied, there were no significant differences between the experimental groups. The results of the current study prove that the dietary additive of inorganic hydrochloric acid can substantially improve immune response to bacterial infections in juvenile vimba bream.</p>
</abstract>

A few reports indicate the beneficial effects of organic acids and their salts on anti-infective immunity in fish species. In the role of immunostimulants, inorganic acids may prove to be a much cheaper alternative to their organic equivalents. However, no report has described the effect of using inorganic acid as a feed additive on fish immunity. This study is the first attempt to evaluate the effect of hydrochloric acid (HCl) as a fish feed supplement on cellular immunity in the stomachless fish, cypriniform vimba bream, Vimba vimba (L.). Two groups, three replicates each, of juvenile vimba were fed a commercial dry fish diet or its variant containing a 1.5% additive of HCl for 55 days. The experiment was conducted in a recirculating aquaculture system at 25°C. Mortality, growth, condition factor, feed conversion ratio, respiratory burst activity (RBA), potential killing activity (PKA), and the proliferative response of head kidney lymphocytes were determined for both groups at the end of the experiment and compared. The PKA was higher in the group fed the diet with HCl. For all other parameters studied, there were no significant differences between the experimental groups. The results of the current study prove that the dietary additive of inorganic hydrochloric acid can substantially improve immune response to bacterial infections in juvenile vimba bream.

Improved innate immunity in juvenile vimba bream (<italic>Vimba vimba</italic>) fed a dry diet with an additive of hydrochloric acid (HCl)

Department of Ichthyopathology and Fish Health Protection

Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine

University of Warmia and Mazury in Olsztyn

Department of Animal Production, Faculty of Agriculture

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Improved innate immunity in juvenile vimba bream () fed a dry diet with an additive of hydrochloric acid (HCl)

A few reports indicate the beneficial effects of organic acids and their salts on anti-infective immunity in fish species. In the role of immunostimulants,...

Improved innate immunity in juvenile vimba bream (Vimba vimba) fed a dry diet with an additive of hydrochloric acid (HCl)

Publié en ligne: 08 févr. 2024

Pages: 105 - 111

Reçu: 26 juil. 2023

Accepté: 29 août 2023

DOI: https://doi.org/10.2478/aopf-2023-0012

Mots clés
growth, inorganic acid, potential killing activity, respiratory burst activity, stomachless fish

© 2023 Rafał Kamiński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Improved innate immunity in juvenile vimba bream (Vimba vimba) fed a dry diet with an additive of hydrochloric acid (HCl)

Publié en ligne: 08 févr. 2024

Pages: 105 - 111

Reçu: 26 juil. 2023

Accepté: 29 août 2023

DOI: https://doi.org/10.2478/aopf-2023-0012

Mots clésgrowth, inorganic acid, potential killing activity, respiratory burst activity, stomachless fish

© 2023 Rafał Kamiński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
growth, inorganic acid, potential killing activity, respiratory burst activity, stomachless fish