The putative effect of a SOD-rich melon pulp-concentrate on growth performance and antioxidant status of Nile tilapia (Oreochromis niloticus) under heat/dissolved oxygen-induced stress

Xavier, William; Leclercq, Éric; Carvalho, Pedro Luiz Pucci Figueiredo de; Vicente, Igor Simões Tiagua; Guimarães, Matheus Gardim; Rodrigues, Edgar Junio Damasceno; Milanezi, Rafael Colauto; Barbé, Florence; Sartori, Maria Márcia Pereira; Pezzato, Luiz Edivaldo; Barros, Margarida Maria

doi:10.1016/j.aquaculture.2020.735669

Cited by 12 publications

(3 citation statements)

References 41 publications

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“…Conversely, under HDOIS, an increase in metabolism with higher demand for energy and oxygen were expected. Regardless of dietary DP levels, fish showed higher Hb values, although their values were within the normal range for healthy Nile tilapia (Hrubec and Smith, 2010;Damasceno et al, 2016;Xavier et al, 2020). Consequently, MCHC was generally higher, thus demonstrating higher hemoglobin concentration in the erythrocytes.…”

Section: Discussionmentioning

confidence: 90%

“…However, these adaptive mechanisms if not efficient, may lead to maladaptive responses such as low performance, physiological imbalance, and eventually death (Tort, 2011). The direct cause-effect relationship between stress and fish adaptive responses requires investigation, mainly of sub-clinical aspects affecting growth performance, health, disease resistance, and consequently economic loss (Sung et al, 2011;Dawood et al, 2020;Xavier et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Interactive effects of digestible protein levels on thermal and physical stress responses in Nile tilapia

Freitas¹,

Perés²,

Carvalho³

et al. 2022

Revista Brasileira De Zootecnia

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The effects of dietary digestible protein (DP) levels (22, 26, 29, 32, and 34%) and different stressors (cold-induced stress, CIS; heat/dissolved oxygen-induced stress, HDOIS; transport-induced stress, TIS; and size-sorting-induced stress, SSIS) on hemato-biochemical parameters were evaluated. Four hundred and forty Nile tilapia fingerlings were distributed into 40-250 L aquaria and fed experimental diets for 110 days, and fed each of the five experimental diets, that were randomly distributed to eight replicates per treatment. Then, different groups of fish were subjected to one type of stress. Groups of 40 fish were used on CIS (17 °C), HDOIS (32 °C), and TIS (4 h), and a group of 140 fish on SSIS (15 min air exposure and 60 s handling). There was no effect on hemato-biochemical profile when DP levels were compared, neither before nor after stress; however, there was a significant stress effect. Digestible protein did not mitigate stress response under SSIS and CIS; lymphopenia and neutrophilia were the main cellmediated immune response; dietary 22 and 26% DP impaired oxygenation on SSIS and TIS; fish under HDOIS and SSIS demanded more energy using triglycerides as an energy source; the diet formulated to contain 22% DP was not adequate to keep homeostasis under temperature stress. Cluster analysis showed that, for DP levels below the requirement for growth, SSIS and CIS were considered the most stressful conditions. At 34% DP level, HDOIS response was comparable to that of non-stressing conditions.

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Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Interactive effects of digestible protein levels on thermal and physical stress responses in Nile tilapia

Freitas¹,

Perés²,

Carvalho³

et al. 2022

Revista Brasileira De Zootecnia

Self Cite

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show abstract

“…The accumulation of large amounts of lipid will damage the liver structure, physiological function and lipid metabolism disorder, which would lead to excessive free radicals and finally cause oxidative damage to the body [ 68 , 69 ]. SOD is a vital antioxidant enzyme and can eliminate excess free radicals, reduce and inhibit lipid peroxidation, and protect cells from oxidative damage [ 70 , 71 ]. GSH-Px is a vital peroxidase widely existing in the body, which can protect the structure and function of cell membranes from interference and damage of oxides because it can reduce the toxic peroxides to nontoxic hydroxyl compounds [ 72 , 73 , 74 ].…”

Section: Discussionmentioning

confidence: 99%

Alleviation of the Adverse Effect of Dietary Carbohydrate by Supplementation of Myo-Inositol to the Diet of Nile Tilapia (Oreochromis niloticus)

Zhu

Pan

Wang

et al. 2020

Animals

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This study investigated the effect of dietary myo-inositol (MI) on alleviating the adverse effect of the high carbohydrate diet in Nile tilapia (Oreochromis niloticus). Six diets contained either low carbohydrate (LC 30%) or high carbohydrate (HC 45%) with three levels of MI supplementation (0, 400 and 1200 mg/kg diet) to each level of the carbohydrate diet. After an 8-week trial, the fish fed 400 mg/kg MI under HC levels had the highest weight gain and fatness, but the fish fed 1200 mg/kg MI had the lowest hepatosomatic index, visceral index and crude lipid in the HC group. The diet of 1200 mg/kg MI significantly decreased triglyceride content in the serum and liver compared with those fed the MI supplemented diets regardless of carbohydrate levels. Dietary MI decreased triglyceride accumulation in the liver irrespective of carbohydrate levels. The content of malondialdehyde decreased with increasing dietary MI at both carbohydrate levels. Fish fed 1200 mg/kg MI had the highest glutathione peroxidase, superoxide dismutase, aspartate aminotransferase and glutamic-pyruvic transaminase activities. The HC diet increased the mRNA expression of key genes involved in lipid synthesis (DGAT, SREBP, FAS) in the fish fed the diet without MI supplementation. Dietary MI significantly under expressed fatty acid synthetase in fish fed the HC diets. Moreover, the mRNA expression of genes related to lipid catabolism (CPT, ATGL, PPAR-α) was significantly up-regulated with the increase of dietary MI levels despite dietary carbohydrate levels. The gene expressions of gluconeogenesis, glycolysis and MI biosynthesis were significantly down-regulated, while the expression of the pentose phosphate pathway was up-regulated with the increase of MI levels. This study indicates that HC diets can interrupt normal lipid metabolism and tend to form a fatty liver in fish. Dietary MI supplement can alleviate lipid accumulation in the liver by diverging some glucose metabolism into the pentose phosphate pathway and enhance the antioxidant capacity in O. niloticus.

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Disturbance of oxidation/antioxidant status and histopathological damage in tsinling lenok trout under acute thermal stress

Ma²,

et al. 2023

Trop Anim Health Prod

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The putative effect of a SOD-rich melon pulp-concentrate on growth performance and antioxidant status of Nile tilapia (Oreochromis niloticus) under heat/dissolved oxygen-induced stress

Cited by 12 publications

References 41 publications

Interactive effects of digestible protein levels on thermal and physical stress responses in Nile tilapia

Interactive effects of digestible protein levels on thermal and physical stress responses in Nile tilapia

Alleviation of the Adverse Effect of Dietary Carbohydrate by Supplementation of Myo-Inositol to the Diet of Nile Tilapia (Oreochromis niloticus)

Disturbance of oxidation/antioxidant status and histopathological damage in tsinling lenok trout under acute thermal stress

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