Feeding time synchronises daily rhythms of behaviour and digestive physiology in gilthead seabream (Sparus aurata)

Montoya, Ander; López Olmeda, José Fernando; Yúfera, Manuel; Sánchez Muros, María José; Sánchez Vázquez, Francisco Javier

Publication:
Feeding time synchronises daily rhythms of behaviour and digestive physiology in gilthead seabream (Sparus aurata)

dc.contributor.author	Montoya, Ander
dc.contributor.author	López Olmeda, José Fernando
dc.contributor.author	Yúfera, Manuel
dc.contributor.author	Sánchez Muros, María José
dc.contributor.author	Sánchez Vázquez, Francisco Javier
dc.contributor.department	Fisiología
dc.date.accessioned	2024-02-09T11:36:22Z
dc.date.available	2024-02-09T11:36:22Z
dc.date.issued	2010
dc.description	©<2010>. This manuscript version is made available under the CC-BY-NC-ND license http://creativecommons.org/licenses/ccby-nc-nd/4.0/ This document is the Acepted, version of a Published Work that appeared in final form in [Aquaculture].To access the final edited and published work see [https://doi.org/10.1016/j.aquaculture.2010.06.023]
dc.description.abstract	Feeding cycles entrain biological rhythms, which enables animals to anticipate feeding times and so maximizes food utilization. In this article the effect of mealtime on locomotor activity, blood glucose, gastric pH and digestive enzymes was studied in two groups of seabream (Sparus aurata): one group received a single daily meal at random times either during the light or the dark (random feeding, RF), whereas the other group received the meal during the light period every day at the same time (periodic feeding, PF). PF fish showed strong synchronisation of locomotor activity to the light phase (97.9 ± 0.2% of their total daily activity during daytime). In addition, the locomotor activity rhythm of PF fish showed a statistically significant daily rhythm (p < 0.05) for a period of 24 h, whereas RF fish did not display a statistically significant rhythm. Blood glucose levels were higher in RF fish during the 8 h following feeding. Gastric pH showed a postprandial decrease in both groups, but RF fish showed a lower daily average value (4.31 ± 0.21 compared with 5.52 ± 0.20). Amylase and alkaline protease activity increased some hours before mealtime in PF fish, whereas amylase activity increased 1 h after feeding and alkaline protease showed no statistically significant differences in RF fish. Acid protease activity showed no statistically significant differences in any group. Taken together, these results demonstrate that altering the feeding time affects the physiology and behaviour of seabream, which have the capacity to prepare themselves for a forthcoming meal.
dc.format	application/pdf	es
dc.format.extent	8
dc.identifier.citation	Aquaculture 306(1-4): 315-321 (2010)
dc.identifier.doi	https://doi.org/10.1016/j.aquaculture.2010.06.023
dc.identifier.issn	Print: 0044-8486
dc.identifier.uri	http://hdl.handle.net/10201/139107
dc.language	eng	es
dc.publisher	Elsevier
dc.relation	The present research was funded by projects from the Spanish Ministry of Science and Innovation (MICINN) (project AGL2007-66507-C02-02), Fundación Séneca (project 05690/PI/07) and AQUAGENOMICS 28502 (Consolider-Ingenio Program) granted to F. J. Sánchez-Vázquez; and by a project from MICINN (Plan Nacional de Investigación Desarrollo e Innovación, project number AGL2007-64450-C02-01) granted to M. Yúfera.	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Digestive enzymes
dc.subject	Gastric pH
dc.subject	Gilthead seabream
dc.subject	Blood glucose
dc.subject	Mealtime
dc.subject.other	CDU::5 - Ciencias puras y naturales::57 - Ciencias biológicas en general
dc.title	Feeding time synchronises daily rhythms of behaviour and digestive physiology in gilthead seabream (Sparus aurata)	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es