Temperature effects on immune response and hematological parameters of channel catfish Ictalurus punctatus vaccinated with live theronts of Ichthyophthirius multifiliis

Martins, Maurício Laterça; Xu, De‐Hai; Shoemaker, Craig A.; Klesius, Phillip H.

doi:10.1016/j.fsi.2011.07.015

Cited by 79 publications

(39 citation statements)

References 34 publications

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“…Smears were made from 2 x 3 cm 2 area of the body surface on the left side of each fish on microscopes slides to evaluate the parasite infection levels, as published in details by Martins et al (2011).…”

Section: Determination Of Infection Levelmentioning

confidence: 99%

The adenosinergic system, not the cholinergic system, exerts an anti-inflammatory profile in lymphatic immune organs of fish naturally infected with Ichthyophthirius multifiliis

et al. 2017

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Section: Determination Of Infection Levelmentioning

confidence: 99%

The adenosinergic system, not the cholinergic system, exerts an anti-inflammatory profile in lymphatic immune organs of fish naturally infected with Ichthyophthirius multifiliis

et al. 2017

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“…However, bacteria and parasitic infections (Barcellos et al 2008, Martins et al 2011) remains a major challenge to improve productivity and triggers the need to improve fish health by means of vaccination and PAMPs-enriched diets. Thus, in this work, we aimed to evaluate the effects of β-glucan-enriched diet on innate immunity and resistance to challenge by Aeromonas hydrophila infection.…”

Section: Introductionmentioning

confidence: 99%

Immunomodulatory effects of dietary β-glucan in silver catfish (Rhamdia quelen)

Domenico

Canova²,

Soveral³

et al. 2017

Pesq. Vet. Bras.

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RESUMO.-[Efeito imunomodulador da β-glucana usada como aditivo alimentar em jundiás (Rhamdia quelen).]O uso da β-glucana como suplemento alimentar foi avaliado em jundiás. A β-glucana foi adicionada à ração na proporção de 0.01%, e 0.1% e fornecida aos peixes por 21, para avaliar dados hematológicos e parâmetros do sistema imune natural, ou 42 dias, para avaliar ganho de peso e resistência ao desafio com Aeromonas hydrophila. A adição da β-glucana na dieta não afetou o ganho de peso e não induziu alterações hematológicas nem alterações nos níveis de aglutininas e mieloperoxidase sanguínea. No entanto, a atividade hemolítica natural do sistema do complemento foi significativamente maior nos peixes alimentados com β-glucana. Além disso, nos peixes alimentados com β-glucana e desafiados com A. hydrophila, o número de bactérias isoladas do sangue foi significativamente menor, e a sobrevivência ao desafio foi significativamente maior do que nos peixes que não receberam β-glucana. Consequentemente, concluímos que a β-glucana tem potencial imunomodulador quando adicionada à dieta, nas condições experimentais aqui indicadas, e contribui para aumentar imunidade natural e a resistência dos jundiás ao desafio com patógenos específicos. INTRODUCTIONThe occurrence of infectious diseases is one of the major causes of losses in modern aquaculture (Sitjà-Bobadilla The immunomodulatory effects of dietary β-glucan were evaluated in silver catfish. β-glucan was added to the diet (0.01%, and 0.1%) and fed to the fish for 21 days, to evaluate effects on blood and some innate immune parameter, or fed for 42 days, to evaluate growth rate and resistance to challenge with pathogenic Aeromonas hydrophila. We found that adding β-glucan to the diet had no effect on fish growth and no effect on blood cells, or serum bacterial agglutination and serum myeloperoxidase activity. However, fish that received β-glucan in the diet had the natural hemolytic activity of complement significantly higher compared to control fish. Furthermore, fish fed with β-glucan and challenged with A. hydrophila had fewer bacteria in blood and presented a significantly higher survival rate compared to control fish. Thus, we concluded that β-glucan might be explored as feed additive aiming to improve silver catfish innate immunity and resistance to specific pathogen.INDEX TERMS: Silver catfish, Rhamdia quelen, fish, immunostimulants, β-glucan, Aeromonas hydrophila.

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“…The fish (30 days fingerlings approximately 3 g) were acclimatized in tanks 500 L capacity and exposed to two consecutive bathes containing potassium permanganate 5 mg L À1 for 1 h prior to the assay [13]. After a week, fish were distributed in 15 polyethylene tanks 100 L capacity with 20 fish in each in a recirculation system provided by mechanical and biological filter (aerobics and anaerobic) and sterilized by ultraviolet light.…”

Section: Assay I E Immunization Via Intraperitoneal Injectionmentioning

confidence: 99%

“…Immobilized theronts in vitro were capable to cause rapid release of the parasites from the host in vivo [12]. The effects of temperature on the immune response of channel catfish (Ictalurus punctatus) vaccinated with live theronts of I. multifiliis revealed high levels of antibodies in fish vaccinated at 25e30 C [13]. Vaccines can be used with live or dead 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 pathogen to immunize the fish in order to obtain an immunological memory more effective than primary response [14].…”

Section: Introductionmentioning

confidence: 99%

“…The reasons to this difficulty are clear such as the management of protozoans and helminthes in laboratory in in vivo and in vitro tests that may involve more than one host in some cases [15,16]. Studies have demonstrated increased number of defense cells in the circulating blood of vaccinated fish with I multifiliis and the use of hematology as an important tool [11,13,17].…”

Section: Introductionmentioning

confidence: 99%

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Hemato-immunological and biochemical parameters of silver catfish Rhamdia quelen immunized with live theronts of Ichthyophthirius multifiliis

Tancredo¹,

Gonçalves²,

Brum³

et al. 2015

Fish & Shellfish Immunology

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Temperature effects on immune response and hematological parameters of channel catfish Ictalurus punctatus vaccinated with live theronts of Ichthyophthirius multifiliis

Cited by 79 publications

References 34 publications

The adenosinergic system, not the cholinergic system, exerts an anti-inflammatory profile in lymphatic immune organs of fish naturally infected with Ichthyophthirius multifiliis

The adenosinergic system, not the cholinergic system, exerts an anti-inflammatory profile in lymphatic immune organs of fish naturally infected with Ichthyophthirius multifiliis

Immunomodulatory effects of dietary β-glucan in silver catfish (Rhamdia quelen)

Hemato-immunological and biochemical parameters of silver catfish Rhamdia quelen immunized with live theronts of Ichthyophthirius multifiliis

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