Diurnal dynamics of thyroid and sex steroid hormones in the blood of yearlings of the resident form of Black Sea trout Salmo trutta labrax

Ganzha, E. V.; Pavlov, E. D.; Kostin, V. V.; Павлов, Д. С.

doi:10.1134/s1062359015010033

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…Some studies noted that TH levels are species-dependent and associated with physiological conditions (Abdollahpour et al, 2018;Power et al, 2001). A notable seasonality has been reported in plasma levels of TH in different phases of growth and development of various fish (Abdollahpour, Falahatkar, Efatpanah, Meknatkhah, & Van Der Kraak, 2019;Ganzha, Pavlov, Kostin, & Pavlov, 2015;Pavlidis et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Short‐term physiological role of thyroxine administration on plasma metabolites and growth performance of Sterlet sturgeon Acipenser ruthenus

et al. 2020

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Thyroid hormones (THs) play important roles in regulating growth, development and physiological functions in vertebrates. To study the role of short‐term effects of thyroxine (T4) on metabolism and growth in female Sterlet sturgeon, thirty fish with a weight of 707.97 ± 37.15 g were divided into six tanks. Fish were injected intraperitoneal with (a) coconut oil alone (control), (b) 1 mg T4 kg per BW in coconut oil (T1) and (c) 10 mg T4 kg per BW in coconut oil (T10). Blood samples were collected at 0, 4, 7, 14, 28 and 60 days for plasma biochemical analysis, and body length and mass were determined at day 60. Based on results, higher growth was indicated in T10 group. The highest T4 levels were observed on day 4 in the T1 and T10 treatments and gradually declined during the trial. Plasma T3 levels were highest on days 4 and 7 in the T1 and T10 groups, respectively. Plasma triglyceride levels were significantly elevated on day 28 in the T1 group and on day 60 in the T10 group. Plasma glucose concentrations were significantly elevated on days 7 and 14 in T10 group. Overall, the present results suggest that a single injection of T4 can improve growth via changes in the metabolic profile of Sterlet sturgeon.

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Section: Introductionmentioning

confidence: 99%

Short‐term physiological role of thyroxine administration on plasma metabolites and growth performance of Sterlet sturgeon Acipenser ruthenus

et al. 2020

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Hormonal regulation of the phenotype into environmentally appropriate pace‐of‐life syndromes

Weidner,

Jensen,

Giske

et al. 2024

Fish and Fisheries

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The risk of predation is an important driver that tailors life histories in various ways. Using an evolutionary model based on hormonal control, we study how different predation regimes affect adaptive risk‐taking and growth in fish populations. Growth, metabolism and foraging in the modelled fish are regulated by three simplified hormone functions: growth hormone, orexin, and thyroid hormone. A dynamic state‐dependent optimization model finds optimal hormone profiles for adaptive growth strategies in juvenile fish. We consider a gradient from species where behaviour and metabolic activity have large consequences for risk (typically benthic and camouflaged species), to the opposite endpoint where behaviour may modify predation risk to a smaller degree (as in the pelagic). Along this gradient, the model predicts changes in the pace of life from slow to fast, enacted by up‐regulation of the three hormone functions which in turn increase foraging and metabolism and change the priorities of energy reserves versus growth. Under all types of predation risk investigated, growth is faster when food availability is higher. Energy reserves are maintained primarily during periods of poor food availability and are used to accelerate growth during periods when food availability is high. The thyroid hormone function is up‐regulated predominantly when food availability is high and has an important role in trade‐offs balancing energetic gain and survival. At the individual time scale, the hormone system improves organismic flexibility and robustness. Over the phylogenetic time scale, hormone system adaptations have also restricted the phenotypic plasticity of individuals.

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Content of thyroid and sex steroid hormones in young-of-the-year of Black Sea trout Salmo trutta labrax from two spatial groups for different duration of starvation

Павлов

Pavlov

Ganzha

et al. 2015

Biol Bull Russ Acad Sci

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Diurnal dynamics of thyroid and sex steroid hormones in the blood of yearlings of the resident form of Black Sea trout Salmo trutta labrax

Cited by 6 publications

References 12 publications

Short‐term physiological role of thyroxine administration on plasma metabolites and growth performance of Sterlet sturgeon Acipenser ruthenus

Short‐term physiological role of thyroxine administration on plasma metabolites and growth performance of Sterlet sturgeon Acipenser ruthenus

Hormonal regulation of the phenotype into environmentally appropriate pace‐of‐life syndromes

Content of thyroid and sex steroid hormones in young-of-the-year of Black Sea trout Salmo trutta labrax from two spatial groups for different duration of starvation

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