2006
DOI: 10.1590/s0102-09352006000400036
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Streptococcus agalactiae associado à meningoencefalite e infecção sistêmica em tilápia-do-nilo (Oreochromis niloticus) no Brasil

Abstract: A estreptococose é uma doença septicêmica que afeta peixes de água doce (em cultivo ou livre no ambiente) e de ambientes estuarino e marinho As principais espécies envolvidas são Streptococcus iniae e Streptococcus agalactiae, com sinais clínicos à infecção e espectro de hospedeiros semelhantes (Evans et al., 2002a;Shelby et al., 2002). Outra espécie que pode estar envolvida é Streptococcus dysgalactiae do grupo C de Lancefield, recentemente relacionado à alta mortalidade devido à necrose acentuada do pedúncul… Show more

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Cited by 29 publications
(23 citation statements)
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“…However, a low mortality rate (13.33%) was observed when the fishes were experimentally instilled in the gills with 5.0 x 10 5 CFU/fish. Similar clinical signs to those observed in this study were reported by Salvador et al (2003;2005), in the Brazilian state of Parana, and also by Figueiredo et al (2006) in the Brazilian states of Espírito Santo and Minas Gerais, in the tilapia cultivated in the earthen ponds and net-tanks. The authors reported lethargia, anorexia, erratic swimming, uni-or bilateral exophthamia, ascites and high mortality.…”
Section: Statisticssupporting
confidence: 91%
See 1 more Smart Citation
“…However, a low mortality rate (13.33%) was observed when the fishes were experimentally instilled in the gills with 5.0 x 10 5 CFU/fish. Similar clinical signs to those observed in this study were reported by Salvador et al (2003;2005), in the Brazilian state of Parana, and also by Figueiredo et al (2006) in the Brazilian states of Espírito Santo and Minas Gerais, in the tilapia cultivated in the earthen ponds and net-tanks. The authors reported lethargia, anorexia, erratic swimming, uni-or bilateral exophthamia, ascites and high mortality.…”
Section: Statisticssupporting
confidence: 91%
“…from tilapia cultivated in nettanks and earthen ponds in the state of Paraná. Figueiredo et al (2006) isolated S. agalactiae from tilapia cultivated in net-tanks in the states of Minas Gerais and Espírito Santo. Eldar et al (1995) reported the erratic swimming, decrease in appetite, lethargy, exophthalmia with intraocular hemorrhage and opaqueness of cornea, and ascites, in the fishes infected by S. difficile.…”
Section: Introductionmentioning
confidence: 99%
“…Diseases outbreaks are responsible for elevated mortality rates and decrease of the productivity efficiency, causing high economic losses to the fish farmers (6,10). The use of antibiotics is the main treatment applied to control bacterial illness in fish farms.…”
mentioning
confidence: 99%
“…The plant extracts were lyophilized and stored at -20ºC until use. S. agalactiae (strain SA 16-06), F. columnare (strain BZ 01-02) and A. hydrophila (strain AE 255-03), isolated from Oreochromis niloticus (Linnaeus, 1758) were selected to the antibacterial assays (6,7,11). Escherichia coli ATCC 25922 was used as control (3,4).…”
mentioning
confidence: 99%
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