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| Registros recuperados: 10 | |
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| Noffs,André Pedro; Tachibana,Leonardo; Santos,Antenor Aguiar; Ranzani-Paiva,Maria José Tavares. |
| The objective of this work was to evaluate the addition of Bacillus subtilis probiotic to the feed of common snook (Centropomus undecimalis) fingerlings, in alternate and continuous regimens. Six hundred and sixty fish, with average length of 5.90±0.88 cm and weight of 1.92±0.28 g, were stocked in 12 cages of 1.0 m3, with 55 fish each. The experimental design was completely randomized, with three treatments and four replicates. The treatments consisted of diet with the addition of probiotic, provided in alternate regimen for 7 days and in continuous regimen; besides a control without probiotic in the feed. Zootechnical performance, body composition, immune response, and blood parameters were evaluated. No significant differences were observed in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus subtilis; Centropomus undecimalis; Hematology; Immunostimulant; Marine aquaculture; Respiratory burst.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000400267 |
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| Abreu,Janessa S.; Brinn,Richard P.; Gomes,Levy C.; McComb,Dawn Michelle; Baldisserotto,Bernardo; Zaiden,Sérgio F.; Urbinati,Elisabeth C.; Marcon,Jaydione L.. |
| We investigated the use of beta 1,3 glucan as an imunostimulant during a transport experiment to determine the effects upon the stress response of the pencilfish (Nannostomus trifasciatus). Pencilfish were fed for seven days with different concentrations of beta 1,3 glucan: 0.0% (control); 0.01%; 0.1% and 0.5% of beta 1,3 glucan per kg of feed-1. Fish were then transported for 24 hours by boat from Barcelos to Manaus. The highest dose of beta 1,3 glucan in the food increased Na+influx after 12 hours of transport and 0.1 and 0.5% beta 1,3 glucan maintained the flux of both ions close to zero at 24 hours. All doses of beta 1,3 glucan reduced K+ loss significantly in the beginning of the transport, but after 12 to 24 hours did not. No significant differences... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cortisol; Immunostimulant; Ion fluxes; Ornamental fish; Rio Negro basin. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300623 |
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| Reverter, Miriam; Saulnier, Denis; David, Rarahu; Bardon-albaret, Agnes; Belliard, Corinne; Tapissier-bontemps, Nathalie; Lecchini, David; Sasal, Pierre. |
| The emerging orbicular batfish (Platax orbicularis) aquaculture is the most important fish aquaculture industry in French Polynesia. However, bacterial infections are causing severe mortality episodes. Therefore, there is an urgent need to find an effective management solution. Besides the supplying difficulty and high costs of veterinary drugs in French Polynesia, batfish aquaculture takes place close to the coral reef, where use of synthetic persistent drugs should be restricted. Medicinal plants and bioactive algae are emerging as a cheaper and more sustainable alternative to chemical drugs. We have studied the effect of local Polynesian plants and the local opportunistic algae Asparagopsis taxiformis on batfish when orally administered. Weight gain and... |
| Tipo: Text |
Palavras-chave: Orbicular batfish; Asparagopsis taxiformis; Immunostimulant; Lysozyme G; Transforming growth factor; Relative gene expression. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00350/46155/45853.pdf |
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| Le Moullac, Gilles; Boglio, Eric; Goarant, Cyrille. |
| Une substance immunostimulante administrée par voie orale est testée chez la crevette Penaeus stylirostris. Cette expérimentation est réalisée à la station de St Vincent afin de se rapprocher des conditions du Syndrôme 93. Les effets sont mesurés pendant 2 semaines sur des paramètres hématologiques (hémocytes totaux, cellules à grands granules, coloration spécifique : cellules incorporant le rouge neutre). D'autre part un stress des crevettes en cage sur un fond réduit en bassin constitue le challenge. L'administration de l'immunostimulant par voie orale augmente significativement le nombre des hémocytes totaux, ainsi que les cellules incorporant le rouge neutre. Cependant le stress de la mise en cage sur fond réduit n'a pas déclenché de mortalité de type... |
| Tipo: Text |
Palavras-chave: Penaeus stylirostris; Syndrome 93; Immunostimulant; Hémocyte; Stade de mue.. |
| Ano: 1997 |
URL: https://archimer.ifremer.fr/doc/00680/79245/81762.pdf |
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| Sabioni,Rafael Estevan; Zanuzzo,Fábio Sabbadin; Cyrino,José Eurico Possebon. |
| Abstract Stress in intensive fish farming hamper immune function of fish and cause losses by disease outbreaks, a situation that can be minimized, but cannot be completely circumvented, by the use of immunomodulators. Addition of immunomodulators to aquafeeds has thus become a common practice. β-glucan (BG) is one of most studied and effective immunomodulators, aquaculture purposes included. Extracted from cell walls of bacteria, fungi and selected cereals, BG activity depends on the source and extraction methods. This study evaluated effects of two BG products (BG1 and BG2), extracted from Saccharomyces cerevisiae under varying extraction methods and with different immune activity, on the feeding of pacu Piaractus mesopotamicus juveniles. BG1 provided... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immunostimulant; Aquaculture; Stress; Aeromonas hydrophila; Leukocytes; Lysozyme. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100410 |
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| PAVAN,TATIANA R.; NIED,CRISTIAN O.; NORO,MIRELA; ANZILIERO,DENIZ; FRANDOLOSO,RAFAEL; KREUTZ,LUIZ CARLOS. |
| ABSTRACT Molecules with immune modulating activity are ubiquitously distributed in nature and their impact on aquaculture has been exploited in order to increase fish resistance to pathogens. Here, we investigated the effect of inactivated Parapoxvirus ovis (iPPVO) on blood cells and innate and acquired immune response of silver catfish (Rhamdia quelen). iPPVO inoculation had no effect on respiratory burst activity; however, following iPPVO inoculation, we observed a significant decrease on circulating monocytes concomitantly with an increased number of heterophilic granulocytes and thrombocytes, which are the main cells involved in innate immunity and provide connection with acquired immunity. Fish inoculated with a combination of bovine serum albumin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immunostimulant; Adjuvant; Antibody; Fish. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401451 |
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| Anziliero,D.; Weiblen,R.; Kreutz,L.C.; Spilki,F.; Flores,E.F.. |
| The immunostimulatory properties of inactivated Parapoxvirus ovis (iPPVO) have long been investigated in different animal species and experimental settings. In this study, we investigated the effects of iPPVO on cytokine expression in mice after intraperitoneal inoculation. Spleen and sera collected from iPPVO-treated mice at intervals after inoculation were submitted to cytokine mRNA determination by real-time PCR (qPCR), serum protein concentration by ELISA, and interferon (IFN)-α/β activity by bioassay. The spleen of iPPVO-treated animals showed a significant increase in mRNA expression of all cytokines assayed, with different kinetics and magnitude. Proinflammatory cytokines interleukin (IL)-1β, tumor necrosis factor-alpha (TNF-α), and IL-8 mRNA peaked... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytokine; MRNA; ORF virus; Immunostimulant; Innate immune response. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000200110 |
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| Registros recuperados: 10 | |
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