Metabolic and hematological effects of starvation in the European eel, Anguilla anguilla L.—I. Carbohydrate, lipid, protein and inorganic ion metabolism

Dave, Göran; Johansson‐Sjöbeck, Maj‐Lis; Larsson, Åke; Lewander, Kerstin; Lidman, Ulf

doi:10.1016/s0300-9629(75)80059-4

Cited by 148 publications

(45 citation statements)

References 40 publications

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“…On the other hand there was a clear tendency for serum protein to decrease in fasting fish. This could confirmed by presence of previous studies on several starved fish species, including brook trout [41], European eel [42] and Senegalese sole, Solea senegalensis [43] that ensure the decrease of serum total protein after starvation.…”

Section: Discussionsupporting

confidence: 82%

Effect of Feeding with Different Dietary Protein Levels and Starvation on the Health, Nonspecific Immune Parameters, Behavior and Histoarchitectures of Fantail Goldfish (Carassius auratus L.)

Khalil¹,

EL-Husseiny²,

Fattah³

et al. 2015

J Veterinar Sci Technol

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The present investigation was conducted to assess the effect of different dietary protein percentages and starvation on the health, behavior, blood chemistry, immune response and histoarchitectures of fan tail gold fish Carassius auratus L. Experiment was carried out using 80 Carassius auratus with an average body weight 18 ± 2 g which were divided into four groups in duplicate in which, group 1 feed with diet A; 28% Crude Protein (CP). Fish in group 2 was fed on diet B (17% CP) and fish in group 3 was feed on diet C (45% CP) and group 4 kept as fasted group. The experimental period was 8 weeks. The current study clarified that significant high growth rate, improved welfare; decrease aggressive behavior, improved biochemical serum parameters and immune response were observed in group feed with diet containing 45% crude protein. Starvation is directly affected health, immunity and welfare as well as histoarchitectures of all selected organs. Histologically, there is no any significant changes on the histoarchitectures of the all selected organs; liver, spleen, intestine, head kidney as well as muscle of groups 1, 2 and 3 feed with diet A (28% CP), diet B (17% CP) and diet C (45% CP) respectively. Meanwhile, the fasting of group 4 had the most effective changes on the histoarchitectures of all selected organs.

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Section: Discussionsupporting

confidence: 82%

Effect of Feeding with Different Dietary Protein Levels and Starvation on the Health, Nonspecific Immune Parameters, Behavior and Histoarchitectures of Fantail Goldfish (Carassius auratus L.)

Khalil¹,

EL-Husseiny²,

Fattah³

et al. 2015

J Veterinar Sci Technol

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“…Supplying metabolic demands in this way has previously been reported in eels (Dave et al, 1975;Moon, 1983). However, lipid breakdown would be more advantageous from many points of view.…”

Section: Discussionmentioning

confidence: 97%

“…However, lack of surrounding water has also been proposed as a probable signal for observed metabolic arrest (Hochachka & Guppy, 1987). Reduced oxygen availability leads to several metabolic changes, e.g., lactate increase and glycogen mobilization (Hochachka & Somero, 1984), and even a need for protein catabolism (Dave et al, 1975;Mommsen et al, 1980;Smith, 1981;Wood & Fung, 1981;Moon, 1983). Moreover, the absence of surrounding water requires nitrogen metabolism adjustments.…”

Section: Introductionmentioning

confidence: 99%

Metabolic adjustments during semi-aestivation of the marble swamp eel (Synbranchus marmoratus, Bloch 1795) - a facultative air breathing fish

Moraes¹,

Altran²,

Avilez³

et al. 2005

Braz. J. Biol.

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Metabolic changes, principally in intermediary metabolism and nitrogen excretion, were investigated in the marble swamp eel (Synbranchus marmoratus) after 15 and 45 days of artificially induced semi-aestivation. Glucose, glycogen, lactate, pyruvate, free amino acids, triglycerides, ammonia, urea, and urate contents were determined in liver, kidney, white muscle, heart, brain, and plasma. Lactate dehydrogenase, glutamate dehydrogenase, malate dehydrogenase, aspartate amino transferase, alanine amino transferase, glutamine synthase, ornithine carbamoyl transferase, and arginase enzymes were assayed. The teleost S. marmoratus maintained initial energetic demands by lipid oxidation. The course of normal oxidative processes was observed through tissue enzyme profiles. After the lipid stores were exhausted, the fish consumed body proteins. Constant values of hematocrit during induced semi-aestivation suggested that the water balance remained normal. Therefore, the surrounding water was probably did not trigger the semi-aestivation in this teleost. Decrease of ammonia and increase of renal urea synthesis after 45 days of semi-aestivation led to the assumption that an alternative form of eliminating ammonia exists. Metabolic changes entailed by starvation were proposed to explain the biosynthesis of small molecules involved in the semi-aestivation of S. marmoratus.Key words: semi-aestivation, metabolism, adaptation, Synbranchus marmoratus, nitrogen excretion. RESUMO

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“…In contrast, tissues that are more metabolically active like the liver generally have a more continuous turnover, reflecting changes in diet year round, and on a shorter time scale (Perga & Gerdeaux, 2005). Studies that have observed faster turnover time in liver FAs include Dave et al (1975), Regost et al (2003), Mourente & Bell (2006), and Zamal & Ollevier (1995). In addition to a faster metabolism, different tissue types have been shown to have preferential metabolism of specific FAs depending on the tissue's initial FA levels relative to the diet (Trushenski et al, 2008;Budge et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Fatty Acid Profiles Distinguish Channel Catfish from Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes

Young

Whitledge

Trushenski

2014

River Research & Apps

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Running Title: Fatty acid biomarkers in riverine channel catfish KEY WORDS: fatty acids, catfish, Ictalurus punctatus, floodplain lakes, food webs 2 ABSTRACT Despite the increasing use of fatty acids (FAs) as biomarkers in aquatic food web analysis, little information is available regarding differences in FA profiles of fish among habitat types in riverfloodplain ecosystems. The objectives of this study were to 1) test whether the FA profiles of channel catfish (Ictalurus punctatus) differed among three reaches of the lower Kaskaskia River and its floodplain lakes, and 2) to compare FA profiles among muscle, liver, and adipose fin tissues collected from these fish. Profiles differed significantly among sites, especially between upper and lower river sites, and between river channel and oxbow lake sites, suggesting differences in FA availability for channel catfish occupying different habitats and river reaches in the Kaskaskia River system. Specifically, the essential FAs 18:2n-6 and 18:3n-3 increased in catfish tissues from upstream to downstream reaches, which could reflect increased floodplain connectivity and decreasing impoundment effects downstream. Ratios of n-3 to n-6 FAs were higher in fish from oxbow lakes, perhaps suggesting increased use of autochthonous production in the floodplain relative to the main river channel. Muscle and adipose fin FA profiles exhibited similar location-related trends, whereas liver FA profiles were markedly different from the other tissue types. These results suggest that adipose fin tissue samples may be a viable, less-invasive alternative to muscle tissue for analysis of FA profiles in channel catfish. Our study supports the use of tissue FA profiles in identifying habitat utilization by channel catfish, and perhaps habitatspecific energy contributions to riverine consumers. Furthermore, our work highlights floodplain habitat as a potential source of essential n-3 FA and the associated importance of maintaining river-floodplain connectivity to support aquatic food webs.

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Metabolic and hematological effects of starvation in the European eel, Anguilla anguilla L.—I. Carbohydrate, lipid, protein and inorganic ion metabolism

Cited by 148 publications

References 40 publications

Effect of Feeding with Different Dietary Protein Levels and Starvation on the Health, Nonspecific Immune Parameters, Behavior and Histoarchitectures of Fantail Goldfish (Carassius auratus L.)

Effect of Feeding with Different Dietary Protein Levels and Starvation on the Health, Nonspecific Immune Parameters, Behavior and Histoarchitectures of Fantail Goldfish (Carassius auratus L.)

Metabolic adjustments during semi-aestivation of the marble swamp eel (Synbranchus marmoratus, Bloch 1795) - a facultative air breathing fish

Fatty Acid Profiles Distinguish Channel Catfish from Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes

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