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A review on the use of hormones in fish farming: analytical methods to determine their residues. Repositório Alice
HOGA, C. A.; ALMEIDA, F. L.; REYES, F. G. R..
Hormones are used in fish farming to increase fish production when one sex of a species has the capacity to grow bigger and faster than the other sex. The technique to increase fish production based on sexual dimorphism mostly uses estrogens and androgens. These chemicals must be handled carefully to ensure environmental, biological and food safety, since they can contaminate the environment and promote changes in the endocrine system inducing adverse effects on the consumer health. Another important issue is the reliability of the analytical methods used to identify and/or quantify hormone residues in the meat of treated fish. Therefore, the aim of this review is to bring into view the use of hormones in fish farming, the possible impacts of this practice...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Fish farming; Sexual reversion; Piscicultura.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094106
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ANÁLISE ECONÔMICA DA PRODUÇÃO DE TILÁPIAS EM UMA PROPRIEDADE ASSOCIATIVISTA DE ILHA SOLTEIRA/SP AgEcon
Sabbag, Omar Jorge.
O Brasil possui imenso potencial para o desenvolvimento da piscicultura, através de seus 5,5 milhões de hectares de reservatórios de águas doces, sendo que a criação de tilápias (Oreochromis niloticus) em sistemas de tanques-rede instalados em grandes reservatórios, é merecedora de destaque. O presente trabalho objetiva avaliar o custo de produção e a rentabilidade do cultivo de tilápia em tanques-rede de 18 m3, para uma associação de piscicultores (APROAQUA), no Município de Ilha Solteira/SP, tendo por base um estudo de caso para um ciclo produtivo de 180 dias em 0,5 ha, com 60 tanques-rede e produtividade de 68.000 Kg/ciclo. As estimativas de investimento e custos de produção foram baseadas no Custo Operacional Total utilizada pelo Instituto de Economia...
Tipo: Conference Paper or Presentation Palavras-chave: Piscicultura; Custos de produção; Rentabilidade; Fish farming; Production costs; Profitability; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/114171
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Aspects of production in fish farming in Ilha Solteira, Sao Paulo state: viability of developing of public policies AgEcon
Sabbag, Omar Jorge; Lima Costa, Silvia Maria Almeida; Silveira, Alexandre Ninhaus.
Just follow the poster to be presented at IAAE 2012.
Tipo: Presentation Palavras-chave: Fish farming; Diagnostic analysis; Regional development.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development.
Ano: 2012 URL: http://purl.umn.edu/123218
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Benzocaine and eugenol as anesthetics for Brycon hilarii - doi: 10.4025/actascianimsci.v35i2.16644 Animal Sciences
Fabiani, Bruno Matucita; Universidade Estadual do Oeste do Paraná - Unioeste; Boscolo, Wilson Rogério; Universidade Estadual do Oeste do Paraná - Unioeste; Feiden, Aldi; Universidade Estadual do Oeste do Paraná - Unioeste; Diemer, Odair; Universidade Estadual Paulista “Júlio de Mesquita Filho” - UNESP; Bittencourt, Fábio; Universidade Estadual Paulista - UNESP; Neu, Dacley Hertes; Universidade Estadual de Maringá - UEM.
Anesthetic products are frequently employed during fish handling practices; however, the correct doses of the various chemicals for different species are still unknown. This study determined the ideal concentrations of benzocaine and eugenol as anesthetics used in Brycon hilarii juveniles. The fish were acquired from a commercial fish farm located in western Paraná state, Brazil, totaling 104 juveniles, with average body weight and length of 50.04 ± 20.80 g and 16.30 ± 12.32 cm respectively. The study was carried out at the Aquiculture Laboratory from the Aquaculture Management Study Group - GEMAq at the West Parana State University. Five benzocaine concentrations (50.0, 100.0, 150.0, 200.0 and 250.0 mg L-1) and seven eugenol concentrations (50.0, 100.0,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.06.04.00-7 anesthesia; Light sedation; Handling; Native fish; Fish farming; Lethargy Anesthesia; Light sedation; Handling; Native fish; Fish farming; Lethargy.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16644
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Bioeconomic Analysis of Aquaculture's Impact on Wild Stocks and Biodiversity AgEcon
Tisdell, Clement A..
Anderson theorizes that development of the aquaculture of a species of fish (also captured in an open-access fishery) favours the conservation of its wild stocks, if competitive market conditions prevail. However, this theory is shown to be subject to significant limitations. While this is less so within his model, it is particularly so in an extended one outlined here. The extended model allows for the possibility that aquaculture development can impact negatively on wild stocks thereby shifting the supply curve of the capture fishery, or raise the demand for the fish species subject both to aquaculture and capture. Such development can threaten wild stocks and their biodiversity. While aquaculture development could in principle have no impact on the...
Tipo: Working or Discussion Paper Palavras-chave: Aquaculture development; Aquatic conservation; Biodiversity; Common-property; Fish farming; Open-access fishery; Environmental Economics and Policy.
Ano: 2002 URL: http://purl.umn.edu/48739
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Biofilter efficiency of Eichhornia crassipes in wastewater treatment of fish farming in Amazonia: Eficiencia de Eichhornia crassipes como biofiltro en el tratamiento de aguas residuales de la piscicultura en el Amazonas Phyton
Rubim,MAL; Isolino Sampaio,PR; Parolin,P.
Fish is a very important part of the human diet in Amazonia. Near the growing cities, fish populations and individual size have decreased over the past decades. Alternatives to traditional and industrial fishing arise, including fish farming. Strategies to minimize the impact of fish farms on the environment are needed to have a regular and healthy fsh supply. This is to avoid a reduction of biodiversity, a depletion of natural resources, and/or the induction of significant changes in the structure and functioning of adjacent ecosystems. Very little research has been performed on management of efluents as to maintain the quality of water resources. The present study aimed at testing the efficiency of the Amazonian aquatic macrophyte Eichhornia crassipes as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Amazon; Effluent; Fish farming; Biofilters; Aquatic macrophytes; Water hyacinth.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000100031
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Developing effective institutions for water resources management: A case study in the Deduru Oya Basin, Sri Lanka AgEcon
Somaratne, Pallewatte G.; Jinapala, Kiribandage; Perera, L.R.; Ariyaratne, Badugodahewa Ranjith; Bandaragoda, Don Jayatissa; Makin, I.W..
Tipo: Working or Discussion Paper Palavras-chave: River basins; Water resource management; Water lifting; Wells; Domestic water; Population; Economic aspects; Income; Irrigation programs; Institutions; Policy; Groundwater; Agricultural development; Fish farming; Pumps; Ecology; Water supply; Drought; Poverty; Land use; Water scarcity; Natural resources; Agricultural production; Cropping systems; Agricultural and Food Policy; Agricultural Finance; Consumer/Household Economics; Crop Production/Industries; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/92665
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Economic and Environmental Impacts of Improving Growth Rate and Feed Efficiency in Fish Farming Depend on Nitrogen and Density Limitation ArchiMer
Besson, Mathieu; Komen, H; Vandeputte, Marc; Aubin, Joel; De Boer, I J M; Van Arendonk, J A M.
The aim of fish breeding is to increase profit by producing faster growing fish with lower feed intake. However, little is known about the economic and environmental impacts of selective breeding programs for fish. We modelled a fish farm producing African catfish in a Recirculating Aquaculture System (RAS) to calculate economic values of growth rate and feed efficiency with production limited by fish density in rearing tanks and fish nitrogen emission. We also calculated “environmental values” with Life Cycle Assessment. The economic and environmental values of growth rate and feed efficiency depended on the limiting factor. When nitrogen was the limiting factor, economic and environmental values of growth rate were zero. But, on the other hand, feed...
Tipo: Text Palavras-chave: Economic values; Environmental impacts; Fish farming.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00205/31641/30046.pdf
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Economic values of growth and feed efficiency for fish farming in recirculating aquaculture system with density and nitrogen output limitations: a case study with African catfish (Clarias gariepinus) ArchiMer
Besson, M.; Komen, H.; Aubin, J.; De Boer, I. J. M.; Poelman, M.; Quillet, Edwige; Vancoillie, C.; Vandeputte, Marc; Van Arendonk, J A M.
In fish farming, economic values (EV) of breeding goal traits are lacking, even though they are key parameters when defining selection objectives. The aim of this study was to develop a bioeconomic model to estimate EV of 2 traits representing production performances in fish farming: the thermal growth coefficient (TGC) and the feed conversion ratio (FCR). This approach was applied to a farm producing African catfish (Clarias gariepinus) in a recirculating aquaculture system (RAS). In the RAS, 2 factors could limit production level: the nitrogen treatment capacity of the biofilter or the fish density in rearing tanks at harvest. Profit calculation includes revenue from fish sales, cost of juveniles, cost of feed, cost of waste water treatment, and fixed...
Tipo: Text Palavras-chave: Economic values; Feed conversion ratio; Fish farming; Recirculating aquaculture system; Selective breeding; Thermal growth coefficient.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00245/35593/34277.pdf
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Economic viability of the piauçu Leporinus macrocephalus (Garavello & Britski, 1988) production Scientia Agricola
Takahashi,Leonardo Susumu; Gonçalves,Flavio Daolio; Abreu,Janessa Sampaio de; Martins,Maria Inez Espagnoli Geraldo; Ferreira,Antonio Carlos Manduca.
Brazilian fish farms presented an accelerated development during the early 90's, mainly because of the increase in fee-fishing operations. To meet the demand of this market, fish production and supply became excessive and, as a consequence, the number of fee-fishing operations, farmers and the final selling price, decreased. This study analyzes the technical aspects, production cost, profitability and economic viability of the production of piauçu (L. macrocephalus) in ponds, based on information from a rural property. Feeding and fingerling costs amount to approximately 47.1% of the total production cost, representing together with the final selling price the most important factor affecting profitability. The payback period was 8.3 years, the liquid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Costs; Profitability; Economic analysis; Sensitivity analyses; Fish farming.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000200017
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Effects on phytoplankton growth of dissolved substances produced by fish farming ArchiMer
Arzul, Genevieve; Clement, Alejandro; Pinier, Anne.
Fish Farming enriches the water column in dissolved organic and inorganic material. These materials excreed by the fish, elutriate from uneaten food and derive from other polluting substances. Ratios of the organic/inorganic forms of substances (for example N and P) are thus modified. Such perturbations in turn affect phytoplankton development. From in vitro analyses and tests of water taken from a turbot rearing tank, we show the changes in seawater chemical composition produced as well as the way growth was modified in three phytoplankton species: the diatom, Chaetoceros gracile, and the dinoflagellates, Gymnodinium cf. nagasakiense and Alexandrium minutum. Elutriates from the granules used for feed (0.1 to 100 mg.l(-1)) were found to be stimulating,...
Tipo: Text Palavras-chave: Antibiotique; Fécès; Aliment; Aquaculture; Régulation de croissance; Phytoplancton; Urée; Antibiotic; Faeces; Feed; Fish farming; Growth regulation; Phytoplankton; Urea.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00188/29887/28340.pdf
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Escapes of non-native fish from flooded aquaculture facilities: the case of Paranapanema River, southern Brazil Rev. Bras. Zool.
Casimiro,Armando César Rodrigues; Garcia,Diego Azevedo Zoccal; Vidotto-Magnoni,Ana Paula; Britton,John Robert; Agostinho,Ângelo Antônio; Almeida,Fernanda Simões de; Orsi,Mário Luís.
ABSTRACT Non-native species are a major driver of biodiversity loss. Aquaculture activities play a key role in introductions, including the escape of fishes from fish farm facilities. Here, the impact of flooding due to El Niño rains in 2015/2016 in the Lower and Middle Paranapanema River basin, southern Brazil, was investigated by evaluating fish escapes from 12 fish farms. The flooding resulted in the escape of approximately 1.14 million fishes into the river, encompassing 21 species and three hybrids. Non-native species were the most abundant escapees, especially Oreochromis niloticus (Linnaeus, 1758) and Coptodon rendalli (Boulenger, 1897) (96% of all fish). Only seven native fishes were in the escapee fauna, comprising 1% of all fish. Large floods,...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Biological invasion; Climate change; Fish farming; Paraná River; Propagule pressure..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100504
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Eugenol as an anesthetic for juvenile common snook PAB
Bernardes Júnior,Jurandir Joaquim; Nakagome,Fernando Kojima; Mello,Giovanni Lemos de; Garcia,Silvano; Amaral Júnior,Hilton.
The objective of this work was to evaluate the efficacy of eugenol as an anesthetic for juvenile common snook, and to determine the minimum effective concentration for use in handling procedures. In the first trial, juvenile common snook were subjected to immersion baths at 25, 50, 75, 100, 125, and 150 mg L-1 eugenol concentrations, after which induction and recovery times were evaluated. In the second experiment, the lethal exposure time (LT50) at 75 mg L-1 was estimated. Minimum effective eugenol concentration was 50 mg L-1, andthe stage of deep anesthesia and recovery were, respectively, reached at 126.3 and 208.8 s. At 75 mg L-1, LT50 was 1,314 s, and induction time and recovery were also satisfactory; however, fish cannot tolerate over 229 s exposure.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Centropomus undecimalis; Anesthesia; Fish farming; Fish handling.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800052
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Food deprivation does not affect growth performance of juvenile tambacu Acta Amazonica
PAZ,Arlan de Lima; PASTRANA,Yugo Moraes; BRANDÃO,Lian Valente.
ABSTRACT The objective of this study was to evaluate the efficiency of food deprivation on the growth performance of the commercially important hybrid fish tambacu (Piaractus mesopotamicus male × Colossoma macropomum female). For this, 171 juveniles of average length 8 cm and 11.4 g body mass were distributed in nine tanks, and allocated to three treatments: the fish were fed every day (control), fed for six days followed by one day of food deprivation (6F/1D) and fed for five days followed by two days of food deprivation (5F/2D). After 77 days, all animals achieved similar growth rates. Only animals submitted to two days of food deprivation presented hyperphagia. There was a reduction in total feed consumption of 3.8% and 10.8% for the 6F/1D and 5F/2D...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Fish farming; Feeding strategy; Compensatory growth.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000300207
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Influence of water temperature on the economic value of growth rate in fish farming: The case of sea bass (Dicentrarchus labrax) cage farming in the Mediterranean ArchiMer
Besson, M.; Vandeputte, Marc; Van Arendonk, J. A. M.; Aubin, J.; De Boer, I. J. M.; Quillet, E.; Komen, H..
In sea cage farming, fish are exposed to seasonal variations of water temperature, and these variations can differ from one location to another. A small increase in water temperature does not only stimulate growth of the fish (until an optimal level) but also lowers dissolved oxygen concentration in water. Dissolved oxygen may then become a rearing constraint during the production cycle if the oxygen requirement of fish is higher than the supply. The impact of this constraint on production parameters (stocking density of cages and/or batch rotation) and thus on economic profit of a farm will depend on both local thermal regime and growth potential of the fish. Increased growth is one of the most important traits in a breeding objective to increase...
Tipo: Text Palavras-chave: Economic values; Bioeconomic model; Fish farming; Genetic improvement; Temperature; Thermal growth coefficient.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00332/44361/43964.pdf
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Introduction à l'aquaculture des poissons - Analyse de la filière "Pisciculture" ArchiMer
Harache, Yves.
Tipo: Text Palavras-chave: Fish species; World trade; Fish farming.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/rapport-1563.pdf
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Les bases zootechniques et biologiques de l'élevage des poissons marins ArchiMer
Person, Jeannine.
In this synthesis of nearly 30 years of research on marine fish breeding (turbot, Scophthalmus maximus; sole, Solea solea; bass, Dicentrarchus labrax and sea bream, Sparus aurata) we present the main results acquired during the three periods devoted (1) to establishing zootechnical bases of marine fish breeding in general, theme 1, (2) to developing compound feeds adapted to young stages and optimising the feeds for juveniles, theme 2, and finally (3) to studying the impact of environmental factors on the growth capacity of sea fish juveniles, theme 3. Some references relating to the preliminary work on sea fish farming are given at the end of the report as well as, for each stage of this research, articles considered as the most important. The...
Tipo: Text Palavras-chave: Adaptative capacity; Feeding; Juveniles; Larvae; Zootechnics; Production; Fish farming.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-2080.pdf
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Multivariate analysis using morphometric and ultrasound information for selection of tilapia (Oreochromis niloticus) breeders R. Bras. Zootec.
Oliveira,Sheila Nogueira de; Ribeiro,Ricardo Pereira; Oliveira,Carlos Antonio Lopes de; Lopera-Barrero,Nelson Mauricio; Borquis,Rusbel Raul Aspilcueta; Zardin,Aline Mayra da Silva Oliveira; Souza,Felipe Pinheiro de; Poveda-Parra,Angela Rocio.
ABSTRACT This study evaluated morphometric and ultrasound information of tilapia (O. niloticus) breeders through multivariate analysis. We applied correlation, clustering, and principal component analysis to a dataset composed of information from 222 male and female breeders of the improved GIFT strain. The body weight, objective of the breeding program, showed a high positive correlation with most of the morphometric parameters. The formation of clusters indicated characteristics responsible for muscle composition and carcass weight. Some characteristics showed a high correlation, such as body weight and fillet weight (0.98 and 0.94 for females and males, respectively), and a high contribution to the explanation of data variability; of the total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Breeding; Fish farming; Oreochromis sp.; Phenotypic selection.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100151
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Myxobolus sp. (Myxozoa) in the circulating blood of Colossoma macropomum (Osteichthyes, Characidae). Repositório Alice
MACIEL, P. O.; AFFONSO, E. G.; BOIJINK, C. de L.; DIAS, M. T.; INOUE, L. A. K. A..
Myxosporea parasitize many organs in fresh and saltwater fish. Species of the genus Myxobolus parasitizing the gills and other organs of the tambaqui Colossoma macropomum have been described. In the present study, blood smears were made from juvenile tambaqui and were stained with May Grunwald-Giemsa-Wright in order to identify myxozoan parasites. Out of a total of 36 fish examined, one specimen (2.7%) that was reared in a cage presented spores that were identified as M. colossomatis, whereas fish kept in 250 L tanks showed prevalence of 5.5%. This is the first report of M. colossomatis in the blood of farmed tambaqui in the Amazon region. These results indicate that myxozoan parasites should also be investigated in fish blood smears. Some myxosporean...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Piscicultura; Peixe de água doce; Parasito; Tambaqui; Fish farming; Myxobolus; Freshwater fish; Parasites.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/903447
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Parasite fauna of tambaqui reared in net-cages at two stocking densities. Repositório Alice
BAIA, R. R. de J.; SANTOS, G. G.; SILVA, A. da S. e S.; SOUSA, B. O.; TAVARES-DIAS, M..
This study investigated the parasite fauna in Colossoma macropomum reared at two stocking densities in net-cages of a fish farm in the Matapi River, State of Amapá. Before stocking fish in the net-cages for fattening, fish were examined for parasites and also at the end of 90 and 180 days at densities of 50 and 100 fish m-3, respectively. All fish were parasitized by one or more species such as Ichthyophthirius multifiliis, Piscinoodinium pillulare, Anacanthorus spathulatus, Mymarothecium boegeri, Notozothecium janauachensis, Procamallanus (Spirocamallanus) inopinatus and Acarina gen. sp., but the dominance was of I. multifiliis. Parasites presented aggregated dispersion pattern, and there were no differences in the fish relative condition factor between...
Tipo: Nota Técnica/Nota Científica (ALICE) Palavras-chave: Fish farming; Piscicultura; Parasito de Animal; Peixe de Água Doce; Parasites; Freshwater fish.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110918
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