Effects of toxic cyanobacteria and ammonia on flesh quality of blunt snout bream (<i>Megalobrama amblycephala</i>)

Wang, Li; Chen, Chuanyue; Liu, Wanjing; Hu, Xia; Li, Jian; Zhang, Xuezhen

doi:10.1002/jsfa.7850

Cited by 15 publications

(16 citation statements)

References 39 publications

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“…37 Common carp (Cyprinus carpio) (96 h LC50 UIA 1.74 mg/ L) displayed the highest tolerance among carps, and big-head carp (Hypophthalmichthys nobilis) (96 h LC50 UIA 0.33 mg/L) exhibited the least tolerance. 16,17 Common snook (Centropomus undecimalis) (96 h LC 50 UIA of 47 days post hatch [DPH] > 6.47 mg/L) showed high resistance to ammonia toxicity, while Japanese flounder (Paralichthys olivaceus) showed the least tolerance (96 h LC 50 UIA 0.50 mg/L). 25,48 As per the information available, the anadromous fish pink salmon, Oncorhynchus gorbuscha (96 h LC 50 UIA 0.08-0.1 mg/L) reported the lowest ammonia tolerance among fish.…”

Section: Ammonia Toxicitymentioning

confidence: 99%

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Ammonia induced toxico‐physiological responses in fish and management interventions

Parvathy

Das

Jifiriya

et al. 2022

Reviews in Aquaculture

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Intensification of aquaculture practices resulted in increased ammonia production in the culture systems. Lack of proper management of the culture system will result in elevated ammonia, which adversely affects the culture species. Moreover, with the ongoing global warming, fish metabolism and ammonia excretion are expected to increase. This, coupled with the hypoxic condition, exacerbates the severity of ammonia toxicity. Ammonia toxicity can alter the growth and the biochemical, physiological and immunological responses of fish. Several factors such as pH, temperature, salinity, dissolved oxygen, species and life stages of fish, physical activity, feeding and stress influence the toxicity of ammonia in fish. A proper understanding of these factors is a prerequisite for successful aquaculture. The physiological changes caused by the elevated ammonia hinder homeostasis that eventually increases their susceptibility to diseases. This review discusses ammonia toxicity in fish, factors affecting the toxicity and various physiological, haematological, histological and immunological responses induced by the elevated ammonia. Furthermore, the review summarizes various management and dietary interventions to mitigate ammonia and ammonia induced stress in aquaculture.

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Section: Ammonia Toxicitymentioning

confidence: 99%

“…Dietary toxic cyanobacteria and ammonia exposure reduced the quality of blunt snout bream fillet by decreasing fillet total amino acids, total essential amino acids, hardness, gumminess and increasing fillet ultimate pH (pHu) as well as malondialdehyde content. 17…”

Section: Oxidative Stress and Apoptosismentioning

confidence: 99%

Ammonia induced toxico‐physiological responses in fish and management interventions

Parvathy

Das

Jifiriya

et al. 2022

Reviews in Aquaculture

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“…Among these stress factors, ammonia is the most key limited factor that influences the yield and quality of bream. 32,33 and fed by hand with a commercial diet (30% crude protein, 2.8% crude fat and 15% crude fiber) to visual satiation twice per day (9:00 a.m. and 3:00 p.m.). After 2 weeks of acclimation, a total of 300 fish were randomly distributed to five experimental groups and each group contains three replicate tanks (cylindrical, volume 300 L) at a density of 20 fish.…”

Section: Introductionmentioning

confidence: 99%

“…Wuchang bream ( Megalobrama amblycephala ), as the most widely cultivated freshwater fish in Chinese intensive systems, is subjected to environmental stresses like hypoxia, nitrite and ammonia accumulation. Among these stress factors, ammonia is the most key limited factor that influences the yield and quality of bream 32,33 . In addition, ammonia accumulation is difficult to eliminate compared to hypoxia and nitrite.…”

Section: Introductionmentioning

confidence: 99%

Sub‐chronic exposure to ammonia inhibits the growth of juvenile Wuchang bream (Megalobrama amblycephala) mainly by downregulation of growth hormone/insulin‐like growth factor axis

Guo

Wang

Yang

et al. 2021

Environmental Toxicology

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In this study, healthy Wuchang bream (Megalobrama amblycephala) juveniles were exposed to 0, 5, 10, 20 and 30 mg/L total ammonia nitrogen for 30 days to elucidate toxic effects and mechanisms of ammonia on growth performance involved with the regulation of growth hormone/insulin-like growth factor (GH/IGF) and hypothalamic-pituitary-thyroid (HPT) axes. Our results showed that the increasing total ammonia nitrogen concentrations caused dose-depend decreases in the weight gain and specific growth rate but increases in the food conversion ratio and mortality in juvenile bream, indicating growth inhibitory effects induced by ammonia. Concurrently, GH, IGF-1 at protein and mRNA levels were significantly decreased in ammonia exposure groups (p < .05), while serum thyroid stimulating hormone, free thyroxine, free triiodothyronine levels were significantly reduced only in fish exposed to higher concentrations of 20 and 30 mg/L ammonia (p < .05), suggesting that ammonia exposure could perturb both GH/IGF-axis and HPT-axis functions. Furthermore, transcriptional levels of extracellular regulated protein kinases 2 (erk2), phosphatidylinositol 3-kinase (pi3k), protein kinase B (akt), target of rapamycin (tom) and ribosomal protein S6 kinase-polypeptide 1(s6k1) in the dorsal muscle were significantly down-regulated in the fish exposed to ammonia (p < .05). This fact indicated that MAPK/ERK pathway and PI3K/AKT pathway should be responsible for the growth inhibition. Combining the results of spearman correlation coefficient, it should be noted that the GH/IGF axis played a more important role in regulating the growth than the HPT axis in Wuchang bream under persistent ammonia stress.

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“…Based on growth and safety testing, most studies have suggested that fish can utilize a small amount of cyanobacterial bloom biomass (usually less than 5% in feed). The factor that limits the amount of added cyanobacterial biomass may be its higher toxin content [ 19 , 22 , 24 , 26 , 27 , 28 , 29 ]. These results have given rise to the perception that cyanobacterial bloom can hardly be utilized in large quantities as a protein substitute, which has led to a decline in research interest in this field.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Cyanobacterial Bloom from Lake Taihu as a Protein Substitute in Fish Diet—A Case Study on Tilapia

Huo

Guo

et al. 2021

Toxins

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The utility of cyanobacterial bloom is often hindered by concerns about the toxin content. Over three years of investigation, we found that the toxin content of cyanobacterial bloom in Lake Taihu was always low in June and higher in late summer and autumn. The findings enabled us to compare the effects of diets containing low and high toxic cyanobacterial blooms on the growth and consumption safety of tilapia. There were no negative effects on the growth of tilapia, and the muscle seemed to be safe for human consumption in the treatment of 18.5% low toxic cyanobacterial bloom. Therefore, limitations of the utilization of cyanobacterial biomass can be overcome by selecting low toxic cyanobacterial bloom that can be found and collected in large lakes.

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Effects of toxic cyanobacteria and ammonia on flesh quality of blunt snout bream (Megalobrama amblycephala)

Abstract: The results of the present study indicate that dietary toxic cyanobacteria and ammonia exposure reduced the quality of blunt snout bream fillet. © 2016 Society of Chemical Industry.

Cited by 15 publications

References 39 publications

Ammonia induced toxico‐physiological responses in fish and management interventions

Ammonia induced toxico‐physiological responses in fish and management interventions

Sub‐chronic exposure to ammonia inhibits the growth of juvenile Wuchang bream (Megalobrama amblycephala) mainly by downregulation of growth hormone/insulin‐like growth factor axis

Evaluation of Cyanobacterial Bloom from Lake Taihu as a Protein Substitute in Fish Diet—A Case Study on Tilapia

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