Intensive Aquaculture
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Immunomodulation of Juvenile Pacu, Piaractus mesopotamicus, by Different β(1-3)(1-6)-D glucan Products
Abstract Stress in intensive fish farming hamper immune function of fish and cause losses by disease outbreaks, a situation that can be minimized, but cannot be completely circumvented, by the use of immunomodulators. Addition of immunomodulators to aquafeeds has thus become a common practice. β-glucan (BG) is one of most studied and effective immunomodulat
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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2. New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and m
Neotrop. ichthyol.. Publicado em: 24/03/2015
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3. Cultivo de surubim pintado (Pseudoplatystoma corruscans) e híbrido (P. reticulatum X P. corruscans) em sistema de recirculação de água
This study aimed to test a pilot recirculating aquaculture system (RAS) and to evaluate in this system the effects of the stocking density on the production of species of surubim pintado, Pseudoplatystoma corruscans, and its hybrid with P. reticulatum regarding the effect of stocking density and water renewal rate on the hybrid production. The study lasted f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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4. Cultivo integrado de juvenis de TilÃpia do Nilo (Oreochromis niloticus) com a microalga Spirulina platensis: uma alternativa para tratamento de efluente aquÃcola / Culture integrated youth of nile tilapia (Oreochromis niloticus) with microalgae Spirulina platensis: an alternative for treatment of aquaculture effluent
The environmental potential impacts from intensive aquaculture have increased public concern about the sustainability of the activity itself. The present work aimed to evaluate the zootÃcincos parameters of Nile tilapia , water quality, algal biomass production and rate of nitrogen removal compounds by Spirulina platensis realize an integrated cultivation o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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5. Yield and composition of pirarucu fillet in different weight classes.
The fillet yield and quantity of waste generated after processing are important for planning and evaluating the growth performance of species and systems of aquaculture production in Brazil. The pirarucu (Arapaima gigas) is among the species with desirable characteristics for intensive fish with high market value. The objective was to evaluate the performanc
Acta Scientiarum. Animal Sciences. Publicado em: 2011
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6. Desempenho de um sistema de tratamento de efluentes de aquacultura : a recirculação como um alternativa sustentável
O intenso desenvolvimento da aquacultura tem sido acompanhado de um aumento nos impactos ambientais causados por esta atividade. As descargas de efluentes da aquacultura em ecossistemas aquáticos são uma fonte de deterioração da qualidade ambiental e podem causar eutrofização. O presente trabalho investigou e avaliou o desempenho de um sistema de trata
Publicado em: 2010
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7. Taxa de arraÃoamento para o pacu Piaractus mesopotamicus criado em tanques-rede no reservatÃrio de Itaipu / Feeding rate for pacu Piaractus mesopotamicus reared in cages in the itaipu reservoir
O objetivo do trabalho foi avaliar o manejo alimentar de juvenis de pacu submetidos a diferentes taxas de arraÃoamento e sua relaÃÃo com o desempenho produtivo, composiÃÃo corporal e caracterÃsticas hematolÃgicas. O experimento foi realizado na Ãrea de transiÃÃo do reservatÃrio de Itaipu Binacional, no Centro de Desenvolvimento de Pesquisa para Pi
Publicado em: 2010
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8. Growth hormone-insuline-like growth factor-I system in pejerrey Odontesthes bonariensis (Atheriniformes)
Using biotechnology to increase the growth rates of fish is likely to reduce production costs per unit of food. Among vertebrates, fish appear to occupy a unique position, when growth patterns are considered. With few exceptions, fish species tend to grow indeterminately, implying that size is never fixed. Both hyperplasia and hypertrophy contribute to post-
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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9. Allozymic variation and differentiation in the chilean blue mussel, Mytilus chilensis, along its natural distribution
Genetic differentiation in the Chilean blue mussel Mytilus chilensis (Hupé 1854) was investigated based on the variation in the allozyme frequencies of Pgm, Gpi, Icd, Me, Gsr, Lap and Pep in eight samples collected along 1800 km from Arauco (VIII Region) to Punta Arenas (XII Region). Despite the large geographic separations, values of Neis unbiased genetic
Genetics and Molecular Biology. Publicado em: 2006
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10. UtilizaÃÃo da meiofauna bentÃnica no monitoramento do cultivo do camarÃo Litopenaeus vannamei
The recent expansion of intensive aquaculture worldwide has caused severe environmental damage to coastal ecosystems. Shrimp farm effluent may be the major pollution source in estuaries. Considering meiofauna as pollution indicators and Copepoda Harpacticoida the most sensitive to pollutants, the influence of shrimp farm effluent in the Botafogo estuary was
Publicado em: 2005
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11. Bacterial Colonization of Cod (Gadus morhua L.) and Halibut (Hippoglossus hippoglossus) Eggs in Marine Aquaculture
Aquaculture has brought about increased interest in mass production of marine fish larvae. Problems such as poor egg quality and mass mortality of fish larvae have been prevalent. The intensive incubation techniques that often result in bacterial overgrowth on fish eggs could affect the commensal relationship between the indigenous microflora and opportunist
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12. Effect of water temperature on a herpesvirus infection of sea turtles.
The role of water temperature in the induction and maintenance of a dermal herpesvirus infection (gray-patch disease) of young, green sea turtles (Chelonia mydas) was studied under carefully controlled experimental conditions, in which the influence of other recognized stress factors was negligible. A nimals that were subjected to a gradual temperature incre