Influence of early rearing environment on water-borne cortisol and expression of stress-related genes in grass carp (Ctenopharyngodon idella)

Murtaza, Mahmood ul Hassan; Zuberi, Amina; Ahmad, Mohd Faizal; Amir, Imrana; Kamran, Muhammad; Ahmad, Manzoor

doi:10.1007/s11033-020-05574-5

Cited by 8 publications

(5 citation statements)

References 47 publications

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“…Authors recommended the use of this kind of EE to produce fish with better ability to cope with stressful events. 92 Similarly, Tatemoto et al 93 demonstrated through novel-object tests that substrate in more complex environments (i.e. mostly gravel substrate with some glass balls and small coloured PVC pipes) improves the affective states and welfare of Nile tilapia.…”

Section: Substratesmentioning

confidence: 99%

“…Murtaza et al 92 reported a significant benefit of enriched early rearing environment (including multi‐coloured gravel substrate, cobbles and plants) on the physiologic stress response to net capture and confinement of grass carp ( Ctenopharyngodon idella ). Authors recommended the use of this kind of EE to produce fish with better ability to cope with stressful events 92 . Similarly, Tatemoto et al 93 demonstrated through novel‐object tests that substrate in more complex environments (i.e.…”

Section: Environmental Enrichment Strategiesmentioning

confidence: 99%

“…[88][89][90][91] Therefore, although different bottom colours and densities can lead to different effects (see Sections 2.2 and 2.4 respectively), these authors pointed out that improvement of the fish rearing environment with substrate may have multiple beneficial aspects for both fish welfare and producers. Murtaza et al 92 reported a significant benefit of enriched early rearing environment (including multi-coloured gravel substrate, cobbles and plants) on the physiologic stress response to net capture and confinement of grass carp (Ctenopharyngodon idella). Authors recommended the use of this kind of EE to produce fish with better ability to cope with stressful events.…”

Section: Substratesmentioning

confidence: 99%

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Environmental enrichment in fish aquaculture: A review of fundamental and practical aspects

Arechavala-López

Cabrera-Álvarez

Maia

et al. 2021

Reviews in Aquaculture

100

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Environmental enrichment (EE) can improve the welfare of captive fish. Its objective is to provide new sensorial and motor stimulation in order to help meet their behavioural, physiological, morphological and psychological needs, whilst reducing stress and frequency of abnormal behaviours. In fish farms, rearing environments are usually designed from a human perspective and based on economic requirements, mainly for practical reasons for the farmer, with little consideration for animal welfare. Throughout aquaculture production cycles, many farming operations can be stressful for fish, and EE may not only help them cope with these stressful events but also improve their overall welfare. In recent years, increasing interest on the effects of EE in captive fish has focussed mainly on structural enrichment. However, there are many other enrichment strategies that merit attention (e.g. sensorial, occupational, social and dietary enrichment) and which may be of interest for fish farming. Here, we review in depth the existing literature on EE and its effects on the welfare of a wide range of farmed fish species, discussing the feasibility and potential applications of different EE strategies to promote fish welfare at a commercial scale. We also present a practical framework to address the design, validation and implementation of EE by the aquaculture industry, taking in consideration the technical challenges of providing enrichment for farmed fish.

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Section: Substratesmentioning

confidence: 99%

Section: Environmental Enrichment Strategiesmentioning

confidence: 99%

Section: Substratesmentioning

confidence: 99%

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Environmental enrichment in fish aquaculture: A review of fundamental and practical aspects

Arechavala-López

Cabrera-Álvarez

Maia

et al. 2021

Reviews in Aquaculture

100

View full text Add to dashboard Cite

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“…In a study with juvenile black rockfish Sebastes schlegelii , the enrichment type and amount had significant effects on the basal stress level, measured as cortisol level and opercular beat rate: the authors found that the optimal basal stress level for fish was achieved by providing a medium-amount (approximately 50% floor space coverage) of mixed enrichment [ 53 ]. Two contrasting rearing environments (barren and structurally enriched) in postlarvae of grass carp ( Ctenopharyngodon idella ) up to fingerling stage [ 54 ]. The structurally complex substrate reduced the stress level as indicated by the lower expression of stress related genes.…”

Section: Discussionmentioning

confidence: 99%

Rearing Environment during the Endogenous Feeding Stage of Acipenser baerii

Aidos

Cafiso

Lopez

et al. 2022

Animals

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The aim of this study was to evaluate behaviour, growth, lipid composition, muscle development, and stress status of Siberian sturgeon larvae reared with two types of substrate: Bioballs1 (BB1) and Bioballs2 (BB2), when compared to no substrate (CTR). Sampling points were: hatching (T0), schooling (T1), and yolk-sac full absorption (T2). BB1 larvae were less active and showed no schooling behaviour. At T1 and at T2, BB1 larvae showed a significantly higher weight and total length than larvae reared in either CTR or BB2 (p < 0.05). The lipid content of larvae decreased over time, with little relevant differences between groups. At T2, total muscle area, slow muscle area and fast muscle area were significantly higher in larvae reared in BB1 (p < 0.05). No significant differences in muscle proliferation were found between groups. Real Time PCR was used for evaluating the relative expression of a pool of genes: myod, myog, mrf4, igf2, hsp70, hsp90a, hsp90b, and glut2. The expression of these genes did not seem to be much affected by the type of rearing substrate, except for myog and hsp70 at T1, which was greater in BB2 larvae. Our data suggest that the presence of a substrate during this developmental period seems to have positive effects but further studies would be necessary during the exogenous feeding stage.

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“…however, cortisol has a complex effect on feeding behavior, and in some cases, high cortisol levels have been associated with reduced feeding rate. this is because cortisol triggers immediate physiological responses that divert energy away from non-essential processes such as digestion [20]. a study found that exposing fish to high cortisol concentrations for 7 days resulted in a significant decrease in feeding frequency.…”

Section: The Biochemical Blood Parameters Of Common Carp Fishmentioning

confidence: 99%

Effect of Feeding Common Carp with Different Quantities of a Certified Commercial Feed on Haematological Parameters, Blood Indicators and Cortisol Hormone Levels

Fayyad,

Abedalhammed

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study was conducted at fish laboratory affiliated to the department of animal production/ college of agriculture/ University of Anbar. The experiment lasted eight weeks (5 /Sep / 2022-31 /Oct / 2022) in Aquatic Recirculating System (ARS), to examine the appropriate effect of feeding common carp with different quantities of a certified commercial feed on hematological parameters, blood indicators, and cortisol hormone levels revealed that significant differences among the treatments. In the second treatment (T2), there was significant improvement (P≤0.05) in red blood cell count, hematocrit, hemoglobin, and white blood cell count compared to the other experimental treatments. Treatment four (T4) showed superiority in lymphocyte count, while treatment three (T3) exhibited higher values in both monocytes count and monocyte to lymphocyte ratio (P≤0.05). regarding the biochemical blood parameters, treatments T6, T5, T4, T2, and T1 demonstrated significant superiority (P≥0.05) over treatment three (T3) in terms of cholesterol, triglycerides, low-density lipoprotein, very low-density lipoprotein, ALT enzyme, and AST enzyme. However, high-density lipoprotein exhibited significant differences (P≤0.05) in treatments T5 and T4. As for cortisol levels, treatment two (T2) displayed significant superiority over the other experimental treatments (P>0.05).

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Influence of early rearing environment on water-borne cortisol and expression of stress-related genes in grass carp (Ctenopharyngodon idella)

Cited by 8 publications

References 47 publications

Environmental enrichment in fish aquaculture: A review of fundamental and practical aspects

Environmental enrichment in fish aquaculture: A review of fundamental and practical aspects

Rearing Environment during the Endogenous Feeding Stage of Acipenser baerii

Effect of Feeding Common Carp with Different Quantities of a Certified Commercial Feed on Haematological Parameters, Blood Indicators and Cortisol Hormone Levels

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