Biofloc technology (BFT) improves skin pigmentation of goldfish (Carassius auratus)

Cunha, Larissa da; Besen, Kayane Pereira; Ha, Natália; Uczay, Juliano; Skoronski, Éverton; Fabregat, Thiago El Hadi Perez

doi:10.1016/j.aquaculture.2020.735132

Cited by 14 publications

(8 citation statements)

References 48 publications

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“…The water quality parameters remained within adequate levels for the production of goldfish in a BFT system (Cunha et al, 2020; Wang et al, 2015; Yu et al, 2020). The addition of mature BFT inoculants in the experimental units prevented the occurrence of peaks of nitrogen compounds.…”

Section: Discussionmentioning

confidence: 98%

“…Heterotrophic bacteria transform nitrogenous compounds present in the cultivation water into microbial biomass that can serve as a supplementary food source for the cultivated species (Avnimelech, 1999; Azim & Little, 2008; Li et al, 2018; Najdegerami et al, 2016). The BFT system has already been validated for different species of fish such as tilapia ( Oreochromis niloticus ), African catfish ( Clarias gariepinus ), South American catfish ( Rhamdia quelen ), goldfish ( Carassius auratus ) (Bakar et al, 2015; Battisti et al, 2020; Cunha et al, 2020; Long et al, 2015; Wang et al, 2015). Positive results were obtained in terms of growth, feed conversion (Ahmad et al, 2016; Luo et al, 2014) and survival rate (Ekasari et al, 2015; Pérez‐Fuentes et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Fermented soybean meal can partially replace fishmeal and improve the intestinal condition of goldfish juveniles reared in a biofloc system

Cunha

Besen

Oliveira

et al. 2022

Aquaculture Research

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This study evaluated the effects of different dietary inclusion levels of fermented soybean meal (FSM) as replacement for fish meal and their effects on the productive performance and intestinal condition of goldfish (Carassius auratus) produced in biofloc (BFT) system. Five isoproteic (39.5% crude protein) and isoenergetic diets (4250 kcal kg −1 of crude energy) were formulated with FSM inclusion levels of 0%, 7%, 14%, 21% and 28% (0, 11, 22, 32 and 43 fish meal replacement). A total of 400 goldfish (0.25 ± 0.02 g) were weighed and distributed in 20 glass aquariums (15 L). Fish were fed twice daily for 56 days. The diet with FSM inclusion level of 28% reduced the weight gain and the specific growth rate and increased the feed conversion of the goldfish. Diets with FSM inclusion levels of 21% and 28% increased the α-amylase activity in the fish intestine. The diet with FSM inclusion level of 21% increased total height of the intestinal villi of the goldfish. In conclusion, the inclusion of up to 21% of FSM can replace fishmeal without affecting the growth of goldfish juveniles reared in BFT system. Fish fed 21% of FSM showed evidence of improvement in the intestinal health.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Fermented soybean meal can partially replace fishmeal and improve the intestinal condition of goldfish juveniles reared in a biofloc system

Cunha

Besen

Oliveira

et al. 2022

Aquaculture Research

Self Cite

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“…This technology can be applied in ornamental fish farming, especially for high-value species such as arowana and discus fish [84]. Biofloc technology is a system that utilizes microorganisms to consume and convert waste into protein-rich feed for fish [85].…”

Section: Production Technologymentioning

confidence: 99%

Competitiveness of and Barriers to Indonesia’s Exports of Ornamental Fish

Tarihoran,

Hubeis,

Jahroh

et al. 2023

Sustainability

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Indonesia has been striving to become the world’s largest ornamental fish exporter for the past two decades, but success has been limited. This study analyzes Indonesia’s export competitiveness and identifies the barriers encountered. A trade analysis using the UN-Comtrade database for 2012–2021 was conducted using the Revealed Comparative Advantage (RCA), Constant Market Shares (CMS), and Competitiveness Matrix formulas to evaluate the competitiveness. Qualitative data from interviews with forty-three industry stakeholders were analyzed using NVivo to evaluate export barriers. The findings revealed that Indonesia had not been optimally exporting to some of the world’s largest markets and faced various barriers, such as product quality and continuity, regulations, marketing, shipment, and other internal and external barriers. The government’s role in overcoming those barriers is crucial while maintaining environmental sustainability. We also propose a matrix model for export barrier levels consisting of export readiness, export market accessibility, export operational challenges, and dynamic export environment.

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“…The research on the formation mechanism of fish skin color provides an important theoretical reference for the study of physiology, pathology and genetics of human and other biological pigment cells. Although the production of skin color in fish is complex and varies depending on the breed, feed, and water environment [27,28], genes are the most basic and essential element that influences skin pigmentation. In this study, GO enrichment reflected the different components of pigment cells in different skin colors.…”

Section: Composition Analysis Of Pigment Cells In Different Skin Colorsmentioning

confidence: 99%

Comprehensive Transcriptome Analysis of Different Skin Colors to Evaluate Genes Related to the Production of Pigment in Celestial Goldfish

Li¹,

Sun²,

Cui³

et al. 2022

Biology

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Skin color is an important phenotypic feature of vertebrate fitness under natural conditions. Celestial goldfish, a common goldfish breed in China, mainly shows three kinds of skin colors including white, yellow and brown. However, the molecular genetic basis of this phenotype is still unclear. In this study, high-throughput sequencing was carried out on the back skin tissues of celestial goldfish with different skin colors. About 58.46 Gb of original data were generated, filtered and blasted, and 74,297 mRNAs were obtained according to the reference transcriptome. A total of 4653 differentially expressed genes were screened out among the brown, yellow and white groups, and the expression of melanogenesis related genes in brown goldfish was significantly higher than the other two groups. There are 19 common differentially expressed genes among three groups, of which eight genes are related to pigment production, including tyrp1a, slc2a11b, mlana, gch2, loc113060382, loc113079820, loc113068772 and loc113059134. RT-qPCR verified that the expression patterns of randomly selected differentially expressed transcripts were highly consistent with those obtained by RNA sequencing. GO and KEGG annotation revealed that these differentially expressed genes were mostly enriched in pathways of the production of pigment, including melanogenesis, tyrosine metabolism, Wnt signaling pathway, MAPK signaling pathway etc. These results indicated that the external characteristics of goldfish are consistent with the analysis results at transcriptome level. The results of this study will lay a foundation for further study on the expression characteristics and gene network analysis of pigment related genes.

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Biofloc technology (BFT) improves skin pigmentation of goldfish (Carassius auratus)

Cited by 14 publications

References 48 publications

Fermented soybean meal can partially replace fishmeal and improve the intestinal condition of goldfish juveniles reared in a biofloc system

Fermented soybean meal can partially replace fishmeal and improve the intestinal condition of goldfish juveniles reared in a biofloc system

Competitiveness of and Barriers to Indonesia’s Exports of Ornamental Fish

Comprehensive Transcriptome Analysis of Different Skin Colors to Evaluate Genes Related to the Production of Pigment in Celestial Goldfish

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