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Effects of the Dietary Tryptophan and Aspartate on the Immune Response of Meagre (Argyrosomus regius) after Stress

1
Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain
2
Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Agua del Pino, Carretera El Rompido Punta Umbría, Cartaya, 21450 Huelva, Spain
3
Faculty of Experimental Sciences, University of Huelva, 21071 Huelva, Spain
*
Author to whom correspondence should be addressed.
Received: 30 November 2017 / Revised: 11 January 2018 / Accepted: 17 January 2018 / Published: 24 January 2018
(This article belongs to the Special Issue XVI National Aquaculture Meeting (XVI CNA))
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Abstract

Stress is one of the main problems of farmed fish, where it has been seen to result in a variety of disorders and negative effects. It is considered very important to minimize such effects and one option is the use of dietary additives. In the present experiment, meagre (Argyrosomus regius) specimens were fed three different diets: a control diet consisting of a commercial feed, a tryptophan-supplemented diet and an aspartate-supplemented diet. For each diet, fish were divided into three subgroups: non-stressed (resting), exposed to crowding or air-exposed. Just before the stress, and one and six hours post-stress, serum samples were taken to study several immune parameters (protease, antiprotease, peroxidase and lysozyme) and the bactericidal activity against three fish-pathogenic bacteria (Vibrio angillarum, V. harveyi and Photobacterium damselae subsp. piscicida). The results demonstrated that feeding the animals with the supplemented diets modulates the seric immune parameters, particularly when animals were stressed by air exposure. View Full-Text
Keywords: amino acids; functional diet; stress; immunity; serum; meagre (Argyrosomus regius); aquaculture amino acids; functional diet; stress; immunity; serum; meagre (Argyrosomus regius); aquaculture
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Gonzalez-Silvera, D.; Herrera, M.; Giráldez, I.; Esteban, M.Á. Effects of the Dietary Tryptophan and Aspartate on the Immune Response of Meagre (Argyrosomus regius) after Stress. Fishes 2018, 3, 6.

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