RT info:eu-repo/semantics/article
T1 Prevalence of serum antibodies against Saprolegnia parasitica in wild and farmed brown trout Salmo trutta
A1 Fregeneda Grandes, Juan Miguel
A1 Carbajal González, María Teresa
A1 Aller Gancedo, José Miguel
A2 Sanidad Animal
K1 Inmunología
K1 Sanidad animal
K1 Veterinaria
K1 Zoología
K1 Truchas
K1 Saprolegnia parasítica
K1 Inmunoglobulinas
AB The prevalence of serum antibodies against Saprolegnia parasitica in wild and farmedbrown trout Salmo trutta from the province of León (NW Spain) was studied by enzyme-linkedimmunosorbent assay (ELISA). Blood samples from healthy and Saprolegnia-infected brown troutwere collected over 2 yr with a seasonal periodicity (January, April, July and October) from a hatcheryand river with frequent presence of saprolegniosis (River Porma) and from a river in which thedisease was rarely observed (River Omaña). The individual prevalence was 30.1%, but statisticallysignificant differences were observed between the prevalence in trout from the hatchery (43.0%),from River Porma (31.8%) and from River Omaña (6.4%) and also between the prevalence observedin October (42.9%) and the values obtained in January (24.8%), April (22.7%) and July (27.5%).There was no difference between the seroprevalence in females (34.8%) and males (38.2%), but apositive correlation between raised serum antibody levels and larger (older) fish was found. The lowprevalence of antibodies observed in Saprolegnia-infected trout (18.0%) suggests possible immunesuppression and the lack of an effective specific immune response in fish with saprolegniosis.
PB Inter-Research
YR 2018
FD 2018-11-09
LK http://hdl.handle.net/10612/9057
UL http://hdl.handle.net/10612/9057
NO Diseases of aquatic organisms, 2009, vol. 83, n. 1
NO p. 17-22
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 11, 2024