Efeito da vitamina C sobre o hematócrito e glicemia de alevinos de tilápia-do-nilo (Oreochromis niloticus) em transporte simulado

Okamura, Daniel; Araújo, Felipe Guedes de; Logato, Priscila Vieira Rosa; Murgas, Luís David Solis; Freitas, Rilke Tadeu Fonseca de; Araújo, RB

doi:10.1590/s0102-09352007000400010

Cited by 10 publications

(5 citation statements)

References 15 publications

(3 reference statements)

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“…However, in this study, glucose was stable in all fish except in those submitted to immersion vaccination on day 7 (p>0.05) ( Table 1). These indexes were similar to those found in other studies with healthy Nile tilapia (Martins et al 2004, Okamura et al 2007). …”

Section: Resultssupporting

confidence: 92%

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

et al. 2009

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7 formalin-inactivated bacteria·mL -1 , for 20 minutes. Vaccinated fish groups presented higher hematocrit, number of erythrocytes and leukocytes than the non-vaccinated group. Serum agglutination titer of intraperitoneally vaccinated fish was higher on both evaluation periods for the three bacteria strains. Only on day 21 post-vaccination fish from the oral and immersion vaccination groups presented higher serum agglutination titer than the non-vaccinated fish for A. hidrophyla and E. durans. Serum antimicrobial activity in vaccinated fish was higher for P. aeroginosa and E. coli than in non-vaccinated fish on both evaluation periods. The different vaccine administration routes stimulated hematological and immunological responses in Nile tilapia 21 days post-vaccination, but intraperitoneal vaccination presented higher total number of leukocytes, lymphocytes and serum agglutination titer.

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Section: Resultssupporting

confidence: 92%

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

et al. 2009

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“…There were no significant changes (p > 0.05) of the blood variables evaluated in this study because of the inclusion of different levels of oregano. Levels of plasma glucose, hematocrit, and total protein contents were compatible with reported values in the literature (Goda, 2008;Merighe, Silva, Negrão, & Ribeiro, 2004;Okamura et al, 2007).…”

Section: Discussionsupporting

confidence: 89%

Dietary supplementation of dry oregano leaves increases the innate immunity and resistance of Nile tilapia against Streptococcus agalactiae infection

Santo

Brito

Brandão

et al. 2019

J World Aquaculture Soc

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This study aimed to evaluate the influence of increasing concentrations of dietary dry oregano leaves (DOL), ranging from 0 to 0.15%, on different performance parameters of Nile tilapia.Hence, two separate experimental trials testing growth factors (Trial 1) and innate immunity and disease resistance against Streptococcus agalactiae infection (Trial 2) were conducted with a total of 464 tilapia juveniles and two to four replicates. As a result, dietary inclusion of DOL did not induce significant effects on growth performance, hematological parameters, and fillet composition. However, there were significant differences in lysozyme activity between groups of DOL at 0.075% and the control (0%). Moreover, the bactericidal index of the positive control and groups supplemented with DOL were significantly higher than baseline treatment groups. For disease resistance, there was a reduction of 15% in the relative risk of streptococcosis in fish juveniles after dietary inclusion of oregano at 0.15%. In conclusion, the inclusion of DOL in tilapia diets resulted in no significant gains in terms of growth; nevertheless, the immune system and resistance of tilapia against S. agalactiae infection were significantly improved. † Amanda H. do Espirito Santo and Túlio S. de Brito should be considered joint first authors.

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“…Vitamins C and E are among the most important nutrients that influence the fish immune system, and the supply of both vitamins can reduce mortality and improve fish performance, while increasing specific and nonspecific immune responses (Shiau and Hsu, 2002;Sau et al, 2004), may prevent the immunosuppression (Belo et al, 2005), aid on the inflammatory response (Petric et al, 2003;Belo et al, 2005;Reno et al, 2005), and can be used in a prophylactic way before transport stress (Okamura et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Challenge of pacu (Piaractus mesopotamicus) fed diets supplemented with vitamins C and E by Aeromonas hydrophila under different temperature

Garcia

Moraes

Martins

2009

Arq. Bras. Med. Vet. Zootec.

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Pacu Piaractus mesopotamicus fed diets supplemented with three vitamins C and E levels (zero, 250, and 500mg vitamin/kg diet) were challenged with Aeromonas hydrophila under different temperatures. Fish were kept in 300L plastic tanks and fed during the first 60 days with diets without vitamins C and E, in an attempt to reduce vitamin sources. After this period, fish were maintained at an initial density of 14 fish/tank and test diets were offered during 60 days. At the end of the experiment, all fish were infected with 6×10 6 CFU of A. hydrophila/fish, intraperitoneally injected. No interaction of dietary levels of vitamin C vs. E on mortality was observed. Supplementation with vitamins C and E did not decrease the mortality rate of fish challenged with A. hydrophila. Regardless of vitamin supplementation, after challenge, smaller fish showed higher mortality than larger ones and the fish group maintained in an environment under higher temperatures showed higher mortality rate. Keywords: fish, Piaractus mesopotamicus, vitamin C, vitamin E, Aeromonas hydrophila, mortality RESUMO Pacus Piaractus mesopotamicus alimentados com dietas contendo três níveis de vitaminas C e E (zero

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Efeito da vitamina C sobre o hematócrito e glicemia de alevinos de tilápia-do-nilo (Oreochromis niloticus) em transporte simulado

Cited by 10 publications

References 15 publications

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

Dietary supplementation of dry oregano leaves increases the innate immunity and resistance of Nile tilapia against Streptococcus agalactiae infection

Challenge of pacu (Piaractus mesopotamicus) fed diets supplemented with vitamins C and E by Aeromonas hydrophila under different temperature

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