Effects of chronic exposure to ammonia concentrations on brain monoamines and ATPases of Nile tilapia (Oreochromis niloticus)

Hegazi, Mona M.; Hasanein, Soha S.

doi:10.1016/j.cbpc.2010.01.006

Cited by 20 publications

(15 citation statements)

References 43 publications

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“…In muscle of cod, oxidative stress also led to higher levels of protein carbonylation, specifically of structural proteins (actin and myosin), and fish muscle appears to be highly susceptible to protein carbonylation (Pazos et al, 2011). found that in juvenile Nile tilapia liver and white muscle tissues, chronic exposure to ammonia led to greater protein carbonylation, and this treatment has been shown to reduce growth rate (El-Shafai et al, 2004;Hegazi and Hasanein, 2010;. These results are consistent with the findings from the present study that higher protein oxidative stress in tissues from fishes causes an increase in carbonylation and slower growth.…”

Section: Discussionmentioning

confidence: 97%

Effects of resveratrol on growth and skeletal muscle physiology of juvenile southern flounder

Wilson

Baumgarner

Watanabe

et al. 2015

Comparative Biochemistry and Physiology Part A: Molecular &

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Section: Discussionmentioning

confidence: 97%

Effects of resveratrol on growth and skeletal muscle physiology of juvenile southern flounder

Wilson

Baumgarner

Watanabe

et al. 2015

Comparative Biochemistry and Physiology Part A: Molecular &

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“…The animals could have utilized substantial amount of metabolizable energy in their response to the stressful condition. Others studies have reported that, Nile tilapia exposed to chronic ammonia, had reduced growth rate [50], gill hyperplasia [51,52], increased brain glutamine [53] and high ATPase levels [54]. According to Casillas et al [48], serum total protein, AST and ALT activities can give clue to liver damages in fish.…”

Section: Discussionmentioning

confidence: 99%

Stocking Densities and Chronic Zero Culture Water Exchange Stress Effects on Biological Performances, Hematological and Serum Biochemical Indices of GIFT Tilapia Juveniles (Oreochromis niloticus)

Kpundeh¹

2013

J Aquac Res Development

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Stocking densities and long term zero culture water exchange rate effects, on biological performances, hematological and serum biological indices of Genetically Improved Farm Tilapia (GIFT) strain cultured in tanks were investigated. The trial was divided into four groups with three replicates each, conducted under natural photoperiods for 30 days; data were analysed using one way ANOVA. Results showed that, high stocking densities and zero water exchange rate negatively affected the biological performances, hematological and serum biochemical indices of GIFT tilapia juveniles. Feeding efficiency, specifc growth and survival rates were significantly decreased. Hematoogical indices: red blood cells, white blood cells, Hemoglobin, Hematocrit and platelet decreased as stocking density increased. Indices of liver function (Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) activities) were significant increased. Serum glucose levels, an indicator of cortisol released in blood were increased as stocking density increased. Meanwhile, total protein, triglyceride, cholesterol, triiodothyroxine, thyroxine levels in the blood serum showed downward regulation under the same experimental conditions. This paper would provide useful scientific knowledge on biological performances and physiological responses of GIFT strain tilapia to stressors like high stocking density and zero water exchange. Research with different fish sizes and water exchange rates should be further conducted.

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“…Total ammonia‐N in aqueous environments exists in an equilibrium between the un‐ionized ammonia (NH 3 ) fraction and ammonium (

{NH}_{4}^{+}

) fraction; the free ammonia form is considerably more toxic to all vertebrates (Eddy ). The elevated ammonia in aquacultural systems can have adverse effects on fish growth, feed utilization and welfare (Randall & Tsui ; Eddy ; Hegazi & Hasanein ) because ammonia toxicity may result in oxidative stress. The increase in the activity of xanthine oxidase (XO) and aldehyde oxidase (AO) may cause increased reactive oxygen species (ROS) production in the liver and white muscle of Nile tilapia under chronic ammonia exposure (Hegazi, Attia & Ashour ).…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary α‐ketoglutarate supplementation on the antioxidant defense system and HSP 70 and HSP 90 gene expression of hybrid sturgeon A cipenser schrenckii ♀ × A . baerii ♂ exposed to ammonia‐N stress

Wang

et al. 2016

Aquac Res

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This study was conducted to determine the effects of dietary a-ketoglutarate (AKG) supplementation on the antioxidant defense system and gene expression of heat shock protein (HSP) 70 and HSP 90 in hybrid sturgeons Acipenser schrenckii ♀ 9 A. baerii ♂ exposed to ammonia-N stress. A 2 9 3 factorial experiment was arranged, in which each diet (0%, 1% AKG) was randomly assigned to 0.25 (control) 5 and 10 mg L À1 ammonia-N groups with three replicate aquaria for each 72 h. The 10 mg L À1 ammonia-N significantly increased serum ammonia concentrations and intestinal Gln concentrations and GS activity compared with the 0.25 or 5 mg L À1 ammonia-N groups. The intestinal Gln concentration and GS activity increased, and the serum ammonia concentration decreased, in fish given dietary supplementation of 1.0% AKG compared with fish given diets without AKG. Superoxide dismutase (SOD) and glutathione peroxidase (GPx) activity in serum, gills and intestines decreased when fish were exposed to 5 or 10 mg L À1 ammonia-N, and their activity increased in fish given diets with 1% AKG. Catalase in the serum and gills decreased when fish were exposed to 5 or 10 mg L À1 ammonia-N and increased in fish given diets with 1% AKG. The 10 mg L À1 ammonia-N or 1% AKG supplementation increased HSP 70 and HSP 90 gene expression in the liver. The increased activity of antioxidant enzymes, and increased HSP 70 and HSP 90 gene expression in fish fed diets containing 1% AKG suggested higher tolerance to ammonia-N stress.

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Effects of chronic exposure to ammonia concentrations on brain monoamines and ATPases of Nile tilapia (Oreochromis niloticus)

Cited by 20 publications

References 43 publications

Effects of resveratrol on growth and skeletal muscle physiology of juvenile southern flounder

Effects of resveratrol on growth and skeletal muscle physiology of juvenile southern flounder

Stocking Densities and Chronic Zero Culture Water Exchange Stress Effects on Biological Performances, Hematological and Serum Biochemical Indices of GIFT Tilapia Juveniles (Oreochromis niloticus)

Effects of dietary α‐ketoglutarate supplementation on the antioxidant defense system and HSP 70 and HSP 90 gene expression of hybrid sturgeon A cipenser schrenckii ♀ × A . baerii ♂ exposed to ammonia‐N stress

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