RT info:eu-repo/semantics/article
T1 Seasonal and sex-related variations in serum steroid hormone levels in wild and farmed brown trout Salmo trutta L. in the north-west of Spain
A1 Fregeneda Grandes, Juan Miguel
A1 Hernández Navarro, Salvador
A1 Fernández-Coppel, Ignacio Alonso
A1 Correa Guimaraes, Adriana
A1 Ruíz Potosme, Norlan Miguel
A1 Navas Gracia, Luis Manuel
A1 Martín-Gil, Jesús
A1 Martín-Gil, Francisco Javier
A2 Sanidad Animal
K1 Sanidad animal
K1 Veterinaria
K1 Truchas
K1 Saprolegnia parasítica
K1 Testosterona
K1 Progesterona
AB Serum steroid profiles were investigated in order to evaluate the potential use of circulating sexsteroid levels as a tool for sex identification in brown trout. Changes in the serum concentrations oftestosterone (T), progesterone (P), 17-β-estradiol (E2), and cortisol (F) in wild and farmed maturefemale and male brown trout, Salmo trutta L., were measured in each season (January, May, July,and October) in six rivers and four hatcheries located in the north-west of Spain. Serum cortisol levelsin farmed brown trout were significantly higher and showed a seasonal pattern opposite to thatfound in wild trout. Because levels of the hormones under study can be affected by disruptive factorssuch as exposure to phytoestrogens (which alters the hypothalamic–pituitary–gonadal axis) andinfection with Saprolegnia (which alters the hypothalamic–pituitary–adrenal axis), both factors aretaken into account.
PB IWA publishing
YR 2019
FD 2019-05-24
LK http://hdl.handle.net/10612/10834
UL http://hdl.handle.net/10612/10834
NO Journal of water and health, 2013, vol. 11, n. 4
NO P. 720-728
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 19-abr-2024