Dietary electrolyte balance affects growth performance, amylase activity and metabolic response in the meagre (Argyrosomus regius)

Magnoni, Leonardo J.; Salas-Leiton, Emilio; Peixoto, Maria João; Pereira, Luís F.; Silva-Brito, Francisca; Fontinha, Filipa; Gonçalves, José F.; Wilson, Jonathan M.; Schrama, J.W.; Ozório, Rodrigo O. A.

doi:10.1016/j.cbpb.2017.03.001

Cited by 7 publications

(5 citation statements)

References 74 publications

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“…Specifically, fingerlings kept plasma osmolality values within a constant range (271-274 mOsm kg −1 ) at 12 and 39 ppt, in good agreement with A. inodorus juveniles maintaining their plasma osmolality constant amongst the range from 15 to 35 ppt salinity [38]. However, A. regius juveniles showed higher plasma osmolality values, 387-400 mOsm kg −1 when cultured in full-strength seawater [39]. Therefore, the better growth rates of fingerlings in iso-osmotic water could be associated with their lower osmolality of body fluids compared to juveniles.…”

Section: Discussionsupporting

confidence: 53%

Environmental Salinity Affects Growth and Metabolism in Fingerling Meagre (Argyrosomus Regius)

Ruíz-Jarabo

Tinoco

Vargas‐Chacoff

et al. 2019

Fishes

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The meagre (Argyrosomus regius), a farmed fish in Mediterranean countries, seasonally migrates from offshore areas to estuaries for reproduction. During the first two years of life, the meagre evidences a certain grade of euryhalinity by staying in brackish waters close to the shore. The aim of the present study was to establish if fingerling growth in brackish water is improved compared to seawater, where current culture procedures are conducted. Three-month-old fingerlings were maintained for 45 days under two different salinity regimens (12 and 39 ppt). Several growth parameters as well as osmoregulatory and metabolic variables were assessed. Specific growth rate and hepatosomatic index values revealed that fingerlings performed better in brackish waters (12 ppt) compared to 39 ppt. This study contributes to optimizing meagre rearing conditions, thereby supporting the role of A. regius in aquaculture diversification.

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Section: Discussionsupporting

confidence: 53%

Environmental Salinity Affects Growth and Metabolism in Fingerling Meagre (Argyrosomus Regius)

Ruíz-Jarabo

Tinoco

Vargas‐Chacoff

et al. 2019

Fishes

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“…Enteric pathogens have been proven to stimulate intestinal secretion of electrolytes and water [136,137]. In most species, dietary electrolyte balance may be expressed as Na + /H + and Cl -/HCO 3 and has been influenced by proportions of monovalent mineral cations and anions [138,139]. Electrolyte balance plays a critical role in intestinal phenotype and function [140].…”

Section: E Effect Of Dietary Electrolyte Balance On the Incidence Of mentioning

confidence: 99%

What Is the Impact of Diet on Nutritional Diarrhea Associated with Gut Microbiota in Weaning Piglets: A System Review

Gao

Yin

et al. 2019

BioMed Research International

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Piglets experience severe growth challenges and diarrhea after weaning due to nutritional, social, psychological, environmental, and physiological changes. Among these changes, the nutritional factor plays a key role in postweaning health. Dietary protein, fibre, starch, and electrolyte levels are highly associated with postweaning nutrition diarrhea (PWND). In this review, we mainly discuss the high protein, fibre, resistant starch, and electrolyte imbalance in diets that induce PWND, with a focus on potential mechanisms in weaned piglets.

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“…The induction of stress by dietary imbalances have been described in fish, including responses linked to partial or total replacement of fish meal and fish oil by alternative sources (Montero et al, 2003, 2008, 2010; Gómez-Requeni et al, 2004). Previous studies have shown that growth performance, feed intake and nutrient digestibility are altered when fish are fed electrolyte imbalanced diets (Dersjant-Li et al, 1999, 2000; Saravanan et al, 2013b; Magnoni et al, 2016). However, the induction of stress by this type of dietary imbalance is yet to be investigated in fish.…”

Section: Introductionmentioning

confidence: 99%

Acute Stress and an Electrolyte- Imbalanced Diet, but Not Chronic Hypoxia, Increase Oxidative Stress and Hamper Innate Immune Status in a Rainbow Trout (Oncorhynchus mykiss) Isogenic Line

et al. 2019

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In aquaculture, fish may be exposed to sub-optimal rearing conditions, which generate a stress response if full adaptation is not displayed. However, our current knowledge of several coexisting factors that may give rise to a stress response is limited, in particular when both chronic and acute stressors are involved. This study investigated changes in metabolic parameters, oxidative stress and innate immune markers in a rainbow trout ( Oncorhynchus mykiss ) isogenic line exposed to a combination of dietary (electrolyte-imbalanced diet, DEB 700 mEq Kg -1 ) and environmental (hypoxia, 4.5 mg O 2 L -1 ) challenges and their respective controls (electrolyte-balanced diet, DEB 200 mEq Kg -1 and normoxia, 7.9 or mg O 2 L -1 ) for 49 days. At the end of this period, fish were sampled or subjected to an acute stressor (2 min of handling/confinement) and then sampled. Feeding trout an electrolyte-imbalanced diet produced a reduction in blood pH, as well as increases in cortisol levels, hepato-somatic index (HSI) and total energy content in the liver. The ratio between the lactate dehydrogenase (LDH) and isocitrate dehydrogenase (IDH) activities decreased in the liver of trout fed the DEB 700 diet, but increased in the heart, suggesting a different modulation of metabolic capacity by the dietary challenge. Several markers of oxidative stress in the liver of trout, mainly related to the glutathione antioxidant system, were altered when fed the electrolyte-imbalanced diet. The dietary challenge was also associated with a decrease in the alternative complement pathway activity (ACH 50 ) in plasma, suggesting an impaired innate immune status in that group. Trout subjected to the acute stressor displayed reduced blood pH values, higher plasma cortisol levels as well as increased levels of metabolic markers associated with oxidative stress in the liver. An interaction between diet and acute stressor was detected for oxidative stress markers in the liver of trout, showing that the chronic electrolyte-imbalance impairs the response of rainbow trout to handling/confinement. However, trout reared under chronic hypoxia only displayed changes in parameters related to energy use in both liver and heart. Taken together, these results suggest that trout displays an adaptative response to chronic hypoxia. Conversely, the dietary challenge profoundly affected fish homeostasis, resulting in an impaired physiological response leading to stress, which then placed constraints on a subsequent acute challenge.

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Dietary electrolyte balance affects growth performance, amylase activity and metabolic response in the meagre (Argyrosomus regius)

Cited by 7 publications

References 74 publications

Environmental Salinity Affects Growth and Metabolism in Fingerling Meagre (Argyrosomus Regius)

Environmental Salinity Affects Growth and Metabolism in Fingerling Meagre (Argyrosomus Regius)

What Is the Impact of Diet on Nutritional Diarrhea Associated with Gut Microbiota in Weaning Piglets: A System Review

Acute Stress and an Electrolyte- Imbalanced Diet, but Not Chronic Hypoxia, Increase Oxidative Stress and Hamper Innate Immune Status in a Rainbow Trout (Oncorhynchus mykiss) Isogenic Line

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