Unveiling the effect of dietary essential oils supplementation in Sparus aurata gills and its efficiency against the infestation by Sparicotyle chrysophrii
Visualitza/Obre
Autor/a
Firmino, Joana P.
Vallejos-Vidal, Eva
Sarasquete, Carmen
Ortiz-Delgado, Juan B.
Balasch, Joan Carles
Tort, Lluis
Estevez, Alicia
Reyes-López, Felipe E.
Data de publicació
2020-10-20ISSN
2045-2322
Resum
A microencapsulated feed additive composed by garlic, carvacrol and thymol essential oils (EOs) was evaluated regarding its protective effect in gills parasitized by Sparicotyle chrysophrii in Sparus aurata. A nutritional trial (65 days) followed by a cohabitation challenge with parasitized fish (39 days) were performed. Transcriptomic analysis by microarrays of gills of fish fed the EOs diet showed an up-regulation of genes related to biogenesis, vesicular transport and exocytosis, leukocyte-mediated immunity, oxidation–reduction and overall metabolism processes. The functional network obtained indicates a tissue-specific pro-inflammatory immune response arbitrated by degranulating acidophilic granulocytes, sustained by antioxidant and anti-inflammatory responses. The histochemical study of gills also showed an increase of carboxylate glycoproteins containing sialic acid in mucous and epithelial cells of fish fed the EOs diet, suggesting a mucosal defence mechanism through the modulation of mucin secretions. The outcomes of the in vivo challenge supported the transcriptomic results obtained from the nutritional trial, where a significant reduction of 78% in the abundance of S. chrysophrii total parasitation and a decrease in the prevalence of most parasitic developmental stages evaluated were observed in fish fed the EOs diet. These results suggest that the microencapsulation of garlic, carvacrol and thymol EOs could be considered an effective natural dietary strategy with antiparasitic properties against the ectoparasite S. chrysophrii.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
639 - Caça. Pesca. Piscicultura
Pàgines
23
Publicat per
Springer Nature
Publicat a
Scientific Reports
Citació
Firmino, Joana P., Eva Vallejos-Vidal, Carmen Sarasquete, Juan B. Ortiz-Delgado, Joan Carles Balasch, Lluis Tort, Alicia Estevez, Felipe E. Reyes-López, and Enric Gisbert. 2020. "Unveiling The Effect Of Dietary Essential Oils Supplementation In Sparus Aurata Gills And Its Efficiency Against The Infestation By Sparicotyle Chrysophrii". Scientific Reports 10 (1). doi:10.1038/s41598-020-74625-5.
Número de l'acord de la subvenció
MAPAMA/JACUMAR/ /ES/Estrategias nutricionales para la mejora en el rendimiento productivo: uso de piensos funcionales y dietas salud en acuicultura/DIETAplus
Programa
Aqüicultura
Aquest element apareix en la col·lecció o col·leccions següent(s)
- ARTICLES CIENTÍFICS [2850]
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