Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/27783
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Dietary combination of vitamin E, C and K affects growth, antioxidant activity, and the incidence of systemic granulomatosis in meagre (Argyrosomus regius)
Author(s): Ruiz, Miguel A
Betancor, Monica B
Robaina, Lidia
Montero, Daniel
Hernández-Cruz, Carmen Maria
Izquierdo, Marisol S
Rosenlund, Grethe
Fontanillas, Ramon
Caballero, Maria Jose
Contact Email: m.b.betancor@stir.ac.uk
Keywords: Granulomatosis
Oxidative stress
Meagre
Juvenile
Antioxidant vitamins
Issue Date: 1-Jan-2019
Citation: Ruiz MA, Betancor MB, Robaina L, Montero D, Hernández-Cruz CM, Izquierdo MS, Rosenlund G, Fontanillas R & Caballero MJ (2019) Dietary combination of vitamin E, C and K affects growth, antioxidant activity, and the incidence of systemic granulomatosis in meagre (Argyrosomus regius). Aquaculture, 498, pp. 606-620. https://doi.org/10.1016/j.aquaculture.2018.08.078
Abstract: Systemic granulomatosis is a growing disease with a high morbidity, which affects to the majority of farmed meagre (Argyrosomus regius). The impossibility of isolating any infectious agents has hypothesized a nutritional origin of the disease. In order to try to elucidate the nutritional origin of granulomas, juvenile meagre were fed for 15 weeks with six diets containing different levels of vitamin E and C and with or without addition of vitamin K: Diet 0 (basal premix, no K, 150 mg kg‐−1 E, 20 mg kg‐−1 C), K (added 23 mg kg‐−1 K), EC (300 mg kg‐−1 E, 70 mg kg‐−1 C), KEC (23 mg kg‐−1 K, 300 mg kg‐−1 E, 70 mg kg‐−1 C), EECC (450 mg kg‐−1 E, 230 mg kg‐−1 C) and KEECC (23 mg kg‐−1 K, 450 mg kg‐−1 E, 230 mg kg‐−1 C). The diet EC significantly increased meagre growth in terms of final weight and length. Fish fed the highest levels of vitamin E and C presented lower percentage of granulomas in liver and heart than fish fed diet 0. The scored severity of granulomatosis in liver and kidney (main affected organs) tended to be lower with dietary increase of vitamin E, C and addition of vitamin K (from 1.83 diet 0 to 1.3 diet KEECC and from 0.91 diet 0 to 0.39 diet KEECC). In liver, the diet KEECC significantly increased catalase expression compared with diet 0. In kidney tnfα expression was significantly up-regulated in fish fed diet EECC and KEECC. In heart, low vitamin E and C levels (300 and 70 mg kg‐−1, respectively) significantly increased superoxide dismutase and glutathione peroxidase expression and high addition increased the expression of tnfα and cox-2 (0 or 23 mg kg‐−1 K, 450 mg kg‐−1 E and 230 mg kg‐−1 C, diet EECC and KEECC). The results show that combination of high dietary content of vitamin K and antioxidant vitamins E and C (23, 450 and 230 mg kg‐−1, respectively) influenced in the incidence of the granulomatosis, which suggests that this pathology could be mediated by nutritional factors.
DOI Link: 10.1016/j.aquaculture.2018.08.078
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: Ruiz MA, Betancor MB, Robaina L, Montero D, Hernández-Cruz CM, Izquierdo MS, Rosenlund G, Fontanillas R & Caballero MJ (2019) Dietary combination of vitamin E, C and K affects growth, antioxidant activity, and the incidence of systemic granulomatosis in meagre (Argyrosomus regius), Aquaculture, 498, pp. 606-620. DOI: https://doi.org/10.1016/j.aquaculture.2018.08.078 © 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

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