Data/hora: 20/06/2024 02:05:46

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 28/12/2015
Data da última atualização: | 24/02/2016
Autoria: | PÁDUA, S. B.; MENEZES-FILHO, R. N.; MARTINS, M. L.; BELO, M. A. A.; ISHIKAWA, M. M.; NASCIMENTO, C. A.; SATURNINO, K. C.; CARRIJO-MAUAD, J. R.
Afiliação: | SANTIAGO BENITES DE PADUA, AQUIVET; RONEY NOGUEIRA DE MENEZES FILHO, AQUIVET; MAURICIO LATERÇA MARTINS, UFSC; NARCO ANTONIO DE ANDRADE BELO, UNICASTELO; MARCIA MAYUMI ISHIKAWA, CNPMA; C A NASCIMENTO, UNIGRAN; KLAUS CASARO SATURNINO, UFRO; JULIANA ROSA CARRIJO-MAUAD, UFGD.
Título: | A survey of epitheliocystis disease in farmed Nile tilapia (Oreochromis niloticus Linnaeus, 1758) in Brazil.
Ano de publicação: | 2015
Fonte/Imprenta: | Journal of Applied Ichthyology, v. 31, n. 5, p. 927-930, 2015.
Idioma: | Inglês
Conteúdo: | Abstract: Epitheliocystis is an infectious disease that mainly affects the gills and occasionally the skin of both freshwater and marine fishes (Nowak and LaPatra, 2006). This pathological condition could be caused by different and evolutionary distinct bacteria (Toenshoff et al., 2012; Stride et al., 2014), in which Chlamydia-like organisms (CLOs) have been the predominant agents associated with this disease (Nowak and LaPatra, 2006). However, recent studies describe a novel betaproteobacterial agent of gill epitheliocystis in marine fish (Toenshoff et al., 2012). Morphologically these organisms are coccobacillary, Gram-negative bacteria that inhabit intracytoplasmatic inclusions. In general they are oval, rounded or pleomorphic, with a granular feature of basophilic staining that causes hypertrophy of the target host cells (Szakolczai et al., 1999; Nowak and LaPatra, 2006; Draghi II et al., 2007; Toenshoff et al., 2012). Recent studies have shown that these agents can causewide morbidity in farmed fish, but that the lethality is variable (Mitchell et al., 2010). In addition, CLOs could be associated with subclinical disease that affects fish development, and consequently, when there are heavy infections compromises gill functions (Bradley et al., 1988; Crespo et al., 2001). In Brazil, CLOs were reported during an outbreak that affected pacu, Piaractus mesopotamicus (Szakolczai et al., 1999) and tilapia, Oreochromis niloticus (Lima et al., 2001). Since then, no new reports in Brazilian farmed fish have occurred. The distribution of new cases of epitheliocystis in Nile tilapia farmed in different regions of Brazil is described in this study. The potential of ciliated protozoa as being vectors for this disease is also discussed.
Palavras-Chave: | Epitheliocystis.
Thesagro: | doença animal; Oreochromis niloticus; Tilápia nilótica.
Thesaurus Nal: | fish diseases.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (14737-1) - UPC - AP - DD -  -  -  - DIS