Effect of masking organoleptic properties of fat on diet self-selection by the sparid Diplodus puntazzo

Almaida Pagán, Pedro Francisco; Hernandez, M.D.; Madrid, Juan A.; Costa, J. de; Mendiola, P.

Publication:
Effect of masking organoleptic properties of fat on diet self-selection by the sparid Diplodus puntazzo

dc.contributor.author	Almaida Pagán, Pedro Francisco
dc.contributor.author	Hernandez, M.D.
dc.contributor.author	Madrid, Juan A.
dc.contributor.author	Costa, J. de
dc.contributor.author	Mendiola, P.
dc.contributor.department	Fisiología
dc.date.accessioned	2024-06-21T07:48:53Z
dc.date.available	2024-06-21T07:48:53Z
dc.date.issued	2009
dc.description	© 2009 Blackwell Publishing Ltd. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in Aquaculture Nutrition. To access the final edited and published work see https://doi,org/10.1111/j.1365-2095.2009.00727.x
dc.description.abstract	Fish are able to select a balanced diet according to their nutritional needs by choosing among incomplete feeds or even pure macronutrients. However, the relevance of both the organoleptic properties of diet and the postingestive signals that they produce remains unclear. Thus, sharpsnout seabream were allowed to select between diets containing different edible oils with their organoleptic properties masked by using gelatine capsules. Fish were fed capsules of two different colours so that they could associate the capsule colour with its corresponding postingestive effect. The longitudinal experiment included a first phase during which the fish were adapted to consuming the gelatine capsules. In a second phase, the fish were challenged with two different encapsulated diets: one comprising a complete diet containing fish oil and the other a fat-free diet. Sharpsnout seabream showed a preference for the fish oil capsules (3.8 ± 1.1 g kg)1 body weight (BW), 66.8% of total intake) over the fat-free capsules, showing that they were able to associate the colour of the capsule with their nutritional content through postingestive signals. After that, the fish were challenged to select between the capsules containing the fish oil diet and capsules containing a vegetable oil (linseed or soybean), in which case they showed no preference between diets (2.4 ± 0.3: 2.1 ± 0.5 g kg-1 BW of fish oil versus linseed oil capsules and 2.2 ± 0.2: 1.8 ± 0.6 g kg-1 BW of fish oil versus soybean oil capsules), indicating that the fatty acid composition of the different oils was not sufficient to affect dietary selection through postingestive signals. So, in conclusion, when orosensorial information from food is absent, the fish are able to select between diets at a macronutrient level by using postingestive information. However, this information is not sufficient for distinguishing between diets that differ in the type of oil used.	es
dc.format	application/pdf	es
dc.format.extent	8	es
dc.identifier.citation	Aquaculture Nutrition 2011, 17; e48-e55
dc.identifier.doi	https://doi.org/10.1111/j.1365-2095.2009.00727.x
dc.identifier.issn	Print: 1353-5773
dc.identifier.issn	Electronic: 1365-2095
dc.identifier.uri	http://hdl.handle.net/10201/142523
dc.language	eng	es
dc.publisher	Blackwell Publishing Ltd.	es
dc.relation	This research was supported by grants from the CICYT (AGL2004-08137-CO4-02/ACU to JA Madrid) and the Ministry of Education and Science (MEC) (AP2002-1368 to P.F. Almaida-Pagan).	es
dc.relation.publisherversion	https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2095.2009.00727.x	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Atribución 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.subject	Diplodus puntazzo	es
dc.subject	Edible oils
dc.subject	Feeding behaviour
dc.subject	Fish
dc.subject	Nutrient selection
dc.subject	Taste
dc.title	Effect of masking organoleptic properties of fat on diet self-selection by the sparid Diplodus puntazzo	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es