Infection of the gills of Nile tilapia (Oreochromis niloticus) by Myxosporea

被引：0

作者：

Teixeira, Ricardo Jose ^{[1
]}

Eiras, Jorge C. ^{[2
]}

Spadacci-Morena, Diva D. ^{[3
]}

Xavier, Jose Guilherme ^{[1
]}

Lallo, Maria Anete ^{[1
]}

机构：

[1] Univ Paulista Unip, Programa Patol Ambiental & Expt, Rua Dr Bacelar 1212,4 Andar, BR-04026002 Sao Paulo, SP, Brazil

[2] Univ Porto, Fac Ciencias, Dept Biol, Rua Campo Alegre S-N,Edificio FC4, P-4169007 Porto, Portugal

[3] Inst Butantan, Lab Fisiopatol, Av Vital Brasil 1500, BR-05503900 Sao Paulo, SP, Brazil

来源：

PESQUISA VETERINARIA BRASILEIRA | 2018年 / 38卷 / 06期

关键词：

Gills; Nile tilapia; Oreochromis niloticus; Myxosporea; fish; Henneguya sp; myxosporidia; Myxobolus sp; parasitoses; SP MYXOZOA; L; PARASITES; SEA; FISHES; DELTA;

D O I：

10.1590/1678-5150-PVB-4859

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

In this study, 85 Nile tilapia (Oreochromis niloticus Linnaeus, 1758) were collected in recreational fishing lake (n=35) and Lake Ibirapuera Park (n=50), both located in the city of Sao Paulo. After euthanasia, the fish gills were examined fresh and after histological techniques for the presence of myxosporea. Myxosporeans were observed only in recreational fishing lake with a prevalence of 45.7% (16/35). Henneguya sp. (11.4%, 4/35) and Myxobolus sp. (34.3%, 12/35) were myxosporeans observed in this study. Spores of Henneguya sp. were found in smears fresh gills. The plasmodium of Myxobolus found was of the types epithelial (75%, 9/12), vascular (16.2%, 2/12), and muscle, muscle located in the gills (0.8%; 1/12). The presence of myxosporea was related to epithelial hyperplasia, fusion of lamellae, hyperplasia of mucous cells, inflammation and other pathological changes. Thus it is concluded that prevalence of Myxobolus sp. and Henneguya sp. in gills of O. niloticus was high and was associated with significant histopathological lesions, which highlights the importance of these protozoa to fish cultures.

引用

页码：1085 / 1090

页数：6

共 35 条

[1] Light and electron microscopic study on Henneguya suprabranchiae Landsberg, 1987 (Myxozoa: Myxosporea) infecting Oreochromis niloticus, a new host record [J].