A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquaculture.2020.735484 http://hdl.handle.net/11449/200552 |
Resumo: | Disease prevention and control are crucial for the development of intensive commercial aquaculture. For some fish species, several vaccines are available to contain the effects of pathogens. However, in Nile tilapia there are just a few vaccines available. The current study compared the efficacy of three inactivated vaccines against Streptococcus agalactiae; in Nile tilapia. Formaldehyde, hydrogen peroxide and pH manipulation were used to inactivate the bacteria. Nile tilapia fingerlings were distributed into six experimental groups in duplicate: T1: naïve group; T2: sham group (PBS-injected, non-challenged); T3: PBS-injected control group (PBS-injected, challenge-infected); T4: vaccinated with hydrogen peroxide-inactivated vaccine (vaccinated, challenge-infected); T5: vaccinated with formaldehyde-inactivated vaccine (vaccinated, challenge-infected); T6: vaccinated by pH manipulation (vaccinated, challenge-infected). Twenty-eight days after vaccination, groups T3, T4, T5 and T6 were challenged intraperitoneally with 0.1 mL of the bacteria and monitored for 21 days. Additionally, replicates of non-challenged fish were used for determination of total serum protein and anti-Streptococcus agalactiae IgM antibodies. The percentage of survival of the groups T1, T2, T3, T4, T5 and T6 were 100%, 100%, 62.5%, 80%, 75% and 85%, respectively. The group vaccinated by pH manipulation presented slight higher survival when compared to the control group (P > .05). However, there were no differences in survival between vaccinated groups. The relative percentage survival (RPS) in groups T4, T5 and T6 were 46.6%, 33.3% and 60%, respectively. No differences were observed for total serum proteins and anti-Streptococcus. agalactiae IgM antibodies. The results observed in this study indicate equivalent moderate vaccine efficacy between alternative inactivated (hydrogen peroxide and pH), and conventional formaldehyde vaccines, with slight higher values for the pH manipulated vaccine, which suggests that future studies should be performed for each alternative method in order to improve their performance. |
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A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticusAquacultureBacterial inactivationFormaldehydeHydrogen peroxideVaccine efficacyDisease prevention and control are crucial for the development of intensive commercial aquaculture. For some fish species, several vaccines are available to contain the effects of pathogens. However, in Nile tilapia there are just a few vaccines available. The current study compared the efficacy of three inactivated vaccines against Streptococcus agalactiae; in Nile tilapia. Formaldehyde, hydrogen peroxide and pH manipulation were used to inactivate the bacteria. Nile tilapia fingerlings were distributed into six experimental groups in duplicate: T1: naïve group; T2: sham group (PBS-injected, non-challenged); T3: PBS-injected control group (PBS-injected, challenge-infected); T4: vaccinated with hydrogen peroxide-inactivated vaccine (vaccinated, challenge-infected); T5: vaccinated with formaldehyde-inactivated vaccine (vaccinated, challenge-infected); T6: vaccinated by pH manipulation (vaccinated, challenge-infected). Twenty-eight days after vaccination, groups T3, T4, T5 and T6 were challenged intraperitoneally with 0.1 mL of the bacteria and monitored for 21 days. Additionally, replicates of non-challenged fish were used for determination of total serum protein and anti-Streptococcus agalactiae IgM antibodies. The percentage of survival of the groups T1, T2, T3, T4, T5 and T6 were 100%, 100%, 62.5%, 80%, 75% and 85%, respectively. The group vaccinated by pH manipulation presented slight higher survival when compared to the control group (P > .05). However, there were no differences in survival between vaccinated groups. The relative percentage survival (RPS) in groups T4, T5 and T6 were 46.6%, 33.3% and 60%, respectively. No differences were observed for total serum proteins and anti-Streptococcus. agalactiae IgM antibodies. The results observed in this study indicate equivalent moderate vaccine efficacy between alternative inactivated (hydrogen peroxide and pH), and conventional formaldehyde vaccines, with slight higher values for the pH manipulated vaccine, which suggests that future studies should be performed for each alternative method in order to improve their performance.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Aquaculture Center of Unesp (Caunesp) Sao Paulo State University (Unesp) Via Prof. Paulo Donato Castellane, km 05, 14Aquatic Pathobiology Laboratory Sea Institute of Peru (IMARPE), Esquina Gamarra y GeneralValle s/n, ChucuitoDepartment of Veterinary Pathology School of Agricultural and Veterinary Sciences (FCAV), Unesp. Via Prof. Paulo Donato Castellane, km 05, 14Aquaculture Center of Unesp (Caunesp) Sao Paulo State University (Unesp) Via Prof. Paulo Donato Castellane, km 05, 14Universidade Estadual Paulista (Unesp)(IMARPE)Ramos-Espinoza, Fernando Carlos [UNESP]Cueva-Quiroz, Victor Alexander [UNESP]Yunis-Aguinaga, Jefferson [UNESP]de Moraes, Julieta Rodini Engrácia [UNESP]2020-12-12T02:09:35Z2020-12-12T02:09:35Z2020-11-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquaculture.2020.735484Aquaculture, v. 528.0044-8486http://hdl.handle.net/11449/20055210.1016/j.aquaculture.2020.7354842-s2.0-85085897060Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquacultureinfo:eu-repo/semantics/openAccess2024-04-09T15:37:12Zoai:repositorio.unesp.br:11449/200552Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:17:03.828707Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
title |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
spellingShingle |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus Ramos-Espinoza, Fernando Carlos [UNESP] Aquaculture Bacterial inactivation Formaldehyde Hydrogen peroxide Vaccine efficacy |
title_short |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
title_full |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
title_fullStr |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
title_full_unstemmed |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
title_sort |
A comparison of novel inactivation methods for production of a vaccine against Streptococcus agalactiae in Nile tilapia Oreochromis niloticus |
author |
Ramos-Espinoza, Fernando Carlos [UNESP] |
author_facet |
Ramos-Espinoza, Fernando Carlos [UNESP] Cueva-Quiroz, Victor Alexander [UNESP] Yunis-Aguinaga, Jefferson [UNESP] de Moraes, Julieta Rodini Engrácia [UNESP] |
author_role |
author |
author2 |
Cueva-Quiroz, Victor Alexander [UNESP] Yunis-Aguinaga, Jefferson [UNESP] de Moraes, Julieta Rodini Engrácia [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) (IMARPE) |
dc.contributor.author.fl_str_mv |
Ramos-Espinoza, Fernando Carlos [UNESP] Cueva-Quiroz, Victor Alexander [UNESP] Yunis-Aguinaga, Jefferson [UNESP] de Moraes, Julieta Rodini Engrácia [UNESP] |
dc.subject.por.fl_str_mv |
Aquaculture Bacterial inactivation Formaldehyde Hydrogen peroxide Vaccine efficacy |
topic |
Aquaculture Bacterial inactivation Formaldehyde Hydrogen peroxide Vaccine efficacy |
description |
Disease prevention and control are crucial for the development of intensive commercial aquaculture. For some fish species, several vaccines are available to contain the effects of pathogens. However, in Nile tilapia there are just a few vaccines available. The current study compared the efficacy of three inactivated vaccines against Streptococcus agalactiae; in Nile tilapia. Formaldehyde, hydrogen peroxide and pH manipulation were used to inactivate the bacteria. Nile tilapia fingerlings were distributed into six experimental groups in duplicate: T1: naïve group; T2: sham group (PBS-injected, non-challenged); T3: PBS-injected control group (PBS-injected, challenge-infected); T4: vaccinated with hydrogen peroxide-inactivated vaccine (vaccinated, challenge-infected); T5: vaccinated with formaldehyde-inactivated vaccine (vaccinated, challenge-infected); T6: vaccinated by pH manipulation (vaccinated, challenge-infected). Twenty-eight days after vaccination, groups T3, T4, T5 and T6 were challenged intraperitoneally with 0.1 mL of the bacteria and monitored for 21 days. Additionally, replicates of non-challenged fish were used for determination of total serum protein and anti-Streptococcus agalactiae IgM antibodies. The percentage of survival of the groups T1, T2, T3, T4, T5 and T6 were 100%, 100%, 62.5%, 80%, 75% and 85%, respectively. The group vaccinated by pH manipulation presented slight higher survival when compared to the control group (P > .05). However, there were no differences in survival between vaccinated groups. The relative percentage survival (RPS) in groups T4, T5 and T6 were 46.6%, 33.3% and 60%, respectively. No differences were observed for total serum proteins and anti-Streptococcus. agalactiae IgM antibodies. The results observed in this study indicate equivalent moderate vaccine efficacy between alternative inactivated (hydrogen peroxide and pH), and conventional formaldehyde vaccines, with slight higher values for the pH manipulated vaccine, which suggests that future studies should be performed for each alternative method in order to improve their performance. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:09:35Z 2020-12-12T02:09:35Z 2020-11-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.aquaculture.2020.735484 Aquaculture, v. 528. 0044-8486 http://hdl.handle.net/11449/200552 10.1016/j.aquaculture.2020.735484 2-s2.0-85085897060 |
url |
http://dx.doi.org/10.1016/j.aquaculture.2020.735484 http://hdl.handle.net/11449/200552 |
identifier_str_mv |
Aquaculture, v. 528. 0044-8486 10.1016/j.aquaculture.2020.735484 2-s2.0-85085897060 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquaculture |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129305291522048 |