Effects of GnRHa and hCG with or without dopamine receptor antagonists on the spawning efficiency of African catfish (Clarias gariepinus) reared in hatchery conditions

Abdel‐Latif, Hany M.R.; Shukry, Mustafa; Saad, Michel Fahmy; Mohamed, Nesreen A.; Nowosad, Joanna; Kucharczyk, Dariusz

doi:10.1016/j.anireprosci.2021.106798

Cited by 20 publications

(6 citation statements)

References 52 publications

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“…For instance, fish consumption per capita was shown to increase to 20.5 kg in 2017 from 9.0 kg in 1961, with a 15% per year average growth rate [2]. In terms of aquaculture production in SSA, there is a projected increase of 0.231 million tonnes to 0.464 million tonnes from 2007 to 2030 [3], with tilapia (Oreochromis niloticus L.), carp (Cyprinus carpio L.) and catfish (Clarias gariepinus Burchell) being the main cultured fish species [4][5][6]. To achieve this production increase, it is important to enhance the efficiency of production while maintaining environmental sustainability [7].…”

Section: Introductionmentioning

confidence: 99%

Efficiency and Improved Profitability of Insect-Based Aquafeeds for Farming Nile Tilapia Fish (Oreochromis niloticus L.)

Wachira

Osuga

Munguti

et al. 2021

Animals

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In Sub-Saharan Africa, Nile tilapia (Oreochromis niloticus L.) make up over 80% of aquaculture production. However, the local aquaculture farmers are restricted by the unavailability and expensive cost of formulated rations. To reduce reliance on the scarce and expensive fishmeal used in fish feeds, alternative insect protein has been successfully utilized in many aquafeeds. However, data on the influence of insect-based feed on the growth and economic benefit of feeding tilapia with the emerging insect-based diet are scanty. This study investigated the effect of partially and completely substituting fishmeal with black soldier fly larval meal (BM) on growth and economic parameters of tilapia. The O. niloticus was fed a standard commercial diet as a control (100% FM; 0% BM), BM33 (67% FM; 33% BM), BM67 (33% FM; 67% BM) and BM100 (0% FM; 100% BM) for 20 weeks in randomly assigned cages mounted in an 800 m2 earthen pond. Results from this study showed that diet type significantly (p < 0.05) affected the feed intake of the fish as well as weight gain. The feed conversion ratio and survival rate of O. niloticus did not vary across the different diets. Fish fed Diet1 had a 15% increase in weight when compared to fish fed the control diet. Return on investment and the cost–benefit ratio was similar across the diets, suggesting that BM is a suitable and cost-equivalent dietary supplement of FM up to 100% in aquafeed for growing tilapia fish in earthen ponds for the market.

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Section: Introductionmentioning

confidence: 99%

Efficiency and Improved Profitability of Insect-Based Aquafeeds for Farming Nile Tilapia Fish (Oreochromis niloticus L.)

Wachira

Osuga

Munguti

et al. 2021

Animals

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“… Cluster #4: Neuroendocrinology in African Catfish (Major descriptors: “african catfish,” “ Clarias gariepinus ,” “gene expression,” “ Carassium auratus ,” “goldfish,” “brain,” “messenger rna”) - Centered around “african catfish” and the “gonadotropin-releasing hormone,” this 2000 cluster delves into the neuroendocrine mechanisms in catfish. The exploration of gene expression and its implications on catfish behavior and physiology is evident [ 54 , [88] , [89] , [90] ]. Cluster #5: Essential Oils and Catfish Stress Management (Major descriptors: “responses,” “freshwater,” “stress,” “silver catfish,” “efficacy,” “ Rhamdia quelen ,” “acute toxicity”) - Anchored in 2008, this cluster studies the application and efficacy of “essential oil” in mitigating stress and potential toxicities in catfish, offering potential alternative treatments in aquaculture health [ [91] , [92] , [93] , [94] ].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Catfishes: A global review of the literature

Chandra Segaran,

Azra,

Piah

et al. 2023

Heliyon

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“…For this purpose, artificial reproduction was performed using Ovaprim (Syndel, Nanaimo, BC, Canada) at a dose of 0.5 mL/kg body weight. Reproduction, fertilization and incubation of eggs under controlled conditions were conducted in accordance with the methodology described by Kucharczyk et al [83] and Abdel-Latif et al [84].…”

Section: The Origin Of the Experimental Fishmentioning

confidence: 99%

Synergistic Effect of Dietary Supplementation with Sodium Butyrate, β-Glucan and Vitamins on Growth Performance, Cortisol Level, Intestinal Microbiome and Expression of Immune-Related Genes in Juvenile African Catfish (Clarias gariepinus)

Arciuch-Rutkowska,

Nowosad,

Gil

et al. 2024

IJMS

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The effect of dietary supplementation with sodium butyrate, β-glucan and vitamins (A, D3, E, K, C) on breeding indicators and immune parameters of juvenile African catfish was examined. The fish were fed with unenriched (group C) and enriched feed with a variable proportion of sodium butyrate/β-glucan, and constant content of vitamins (W1–W3). After the experiment, blood and the middle gut were collected. The microbiome of the gut was determined using Next Generation Sequencing (NGS). Liver tissue was collected for determination of expression of immune-related genes (HSP70, IL-1β, TNFα). W2 and W3 were characterized by the most favorable values of breeding indicators (p < 0.05). The highest blood cortisol concentration was in group C (71.25 ± 10.45 ng/mL), and significantly the lowest in W1 (46.03 ± 7.01 ng/ mL) (p < 0.05). The dominance of Cetobacterium was observed in all study groups, with the largest share in W3 (65.25%) and W1 (61.44%). Gene expression showed an increased number of HSP70 genes in W1. IL-1β and TNFα genes peaked at W3. The W3 variant turns out to be the most beneficial supplementation, due to the improvement of breeding and immunological parameters. The data obtained can be used to create a preparation for commercial use in the breeding of this species.

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Effects of GnRHa and hCG with or without dopamine receptor antagonists on the spawning efficiency of African catfish (Clarias gariepinus) reared in hatchery conditions

Cited by 20 publications

References 52 publications

Efficiency and Improved Profitability of Insect-Based Aquafeeds for Farming Nile Tilapia Fish (Oreochromis niloticus L.)

Efficiency and Improved Profitability of Insect-Based Aquafeeds for Farming Nile Tilapia Fish (Oreochromis niloticus L.)

Catfishes: A global review of the literature

Synergistic Effect of Dietary Supplementation with Sodium Butyrate, β-Glucan and Vitamins on Growth Performance, Cortisol Level, Intestinal Microbiome and Expression of Immune-Related Genes in Juvenile African Catfish (Clarias gariepinus)

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