RT journal article
T1 Essential Oils as Stress-Reducing Agents for Fish Aquaculture: A Review
A1 Souza, Carine de Freitas
A1 Baldissera, Matheus Dellamea
A1 Baldisserotto, Bernardo
A1 Heinzmann, Berta Maria
A1 Martos Sitcha, Juan Antonio
A1 Mancera Romero, Juan Miguel
A2 Biología
K1 aquaculture
K1 natural compounds
K1 fish stress
K1 fish health
K1 fish immundogy
AB In fish, stressful events initiate a hormone cascade along the hypothalamus-pituitaryinterrenaland hypothalamus-sympathetic-chromaffin (HSC) axis to evoke severalphysiological reactions in order to orchestrate and maintain homeostasis. Several bioticand abiotic factors, as well as aquaculture procedures (handling, transport, or stockingdensity), activated stress system inducing negative effects on different physiologicalprocesses in fish (growth, reproduction, and immunity). In order to reduce theseconsequences, the use of essential oils (EOs) derived from plants has been the focusof aquaculture studies due to their diverse properties (e.g., anesthetic, antioxidant,and antimicrobial), which have been shown to reduce biochemical and endocrinealterations and, consequently, to improve the welfare status. Recently, several studieshave shown that biogenic compounds isolated from different EOs present excellentbiological activities, as well as the nanoencapsulated form of these EOs may potentiatetheir effects. Overall, EOs presented less side effects than synthetic compounds, buttheir stress-reducing efficacy is related to their chemical composition, concentration orchemotype used. In addition, their species-specific actions must be clearly establishedsince they can act as stressors by themselves if their concentrations and chemotypesused are not suitable. For this reason, it is necessary to assess the effect of these naturalcompound mixtures in different fish species, from marine to freshwater, in order to findthe ideal concentration range and the way for their administration to obtain the desiredbiological activity, without any undesired side effects. In this review, the main findingsregarding the use of different EOs as stress reducers will be presented to highlight themost important issues related to their use to improve fish welfare in aquaculture.
PB FRONTIERS MEDIA SA
SN 1664-042X
YR 2019
FD 2019-06
LK http://hdl.handle.net/10498/21553
UL http://hdl.handle.net/10498/21553
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026