Results 81 to 90 of about 2,858 (197)

Genetic parameters and response to selection for growth in tambaqui

open access: yesAnimal, 2020
Although the tambaqui (Colossoma macropomum) is the most cultivated native fish species in Brazil, estimated breeding values for growth traits are rarely used for selection of superior individuals in commercial fingerling production. This study aimed to estimate the (co)variance components of growth traits.
E.C. Campos   +7 more
openaire   +3 more sources

Evaluation of Different Doses of Tanacetum parthenium Extract (TPE) on Blood Biochemical Parameters and Oxidative Stress Liver Biomarkers of Fish

open access: yesAquaculture Research, Volume 2026, Issue 1, 2026.
Although medicinal plants can be used to reduce stress caused by transportation and handling and to prevent and treat certain diseases in fish, evaluating their safety for fish is essential before their use. This study aimed to evaluate the pharmacological effects and determine the safe dose of the Tanacetum parthenium (known as feverfew) extract (TPE)
Nezam Armand   +4 more
wiley   +1 more source

Valor nutricional e energético de espécies vegetais importantes na alimentação do Tambaqui Nutritional and energy value from important vegetal species in tambaqui feeding

open access: yesActa Amazonica, 2003
Analisou-se o valor nutricional e energético de alguns frutos e sementes das florestas de várzea e igapó, próximas à região de Manaus-AM, importantes na alimentação do tambaqui (Colossoma macropomum Cuvier, 1818).
Jorge Antonio Moreira da Silva   +2 more
doaj   +1 more source

Enzimas digestivas exógenas na alimentação de juvenis de tambaqui Exogenous digestive enzymes in tambaqui juvenile feeding

open access: yesPesquisa Agropecuária Brasileira, 2006
O objetivo deste trabalho foi avaliar o efeito da adição na ração das enzimas digestivas exógenas amilase, lipase e protease sobre o desempenho de tambaqui, em três experimentos independentes. Em cada experimento foi avaliado o efeito da inclusão de uma enzima na ração em diferentes porcentagens: 0,0, 0,05, 0,1 e 0,2%, cada uma com quatro repetições ...
Érica da Silva Santiago Nunes   +3 more
openaire   +1 more source

Zingiber officinale (Ginger), Curcuma longa (Turmeric) and Cymbopogon nardus (Lemon Grass) Essential Oils Have Anti‐Dactylogyrideans Potential in Colossoma macropomum Cuvier 1816 (Tambaqui)

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Essential oils are composed of secondary metabolites derived from medicinal plants and have bioactive properties, such as antiparasitic activity. This study investigated the in vitro anti‐dactylogyridean efficacy of the Zingiber officinale, Curcuma longa and Cymbopogon nardus essential oils, as well as the acute toxicity for Colossoma ...
João G. R. Luz   +6 more
wiley   +1 more source

Global importance of Amazonian freshwaters

open access: yesFrontiers in Ecology and the Environment, Volume 23, Issue 10, December 2025.
Amazonian freshwaters have large influences on regional and global climate, harbor remarkable and unique species, and are vital to human society. Nevertheless, as compared to their terrestrial counterparts in the Amazon, these freshwaters have received less attention from the international conservation community.
Clinton N Jenkins   +12 more
wiley   +1 more source

A eficácia do mentol como anestésico para tambaqui (Colossoma macropomum, Characiformes: Characidae) Efficacy of menthol as an anesthetic for tambaqui (Colossoma macropomum, Characiformes: Characidae)

open access: yesActa Amazonica, 2005
Os anestésicos são importantes na piscicultura para reduzir o estresse e a mortalidade no manejo. Este trabalho tem como objetivo determinar a eficácia do mentol para tambaqui durante o manejo.
Michelle Ferreira Façanha   +1 more
doaj   +1 more source

CADEIA PRODUTIVA DO TAMBAQUI NO ESTADO DO AMAZONAS

open access: yesRevista Brasileira de Engenharia de Pesca, 2019
Ao considerar a expansão da piscicultura do tambaqui (Colossoma macropomum) nas regiões Norte, Nordeste, Centro-oeste e Sudeste do Brasil, a busca pela eficiência dos seus procedimentos se faz necessário no atual cenário competitivo. O mapeamento e envolvimento dos atores desta atividade mostram-se imprescindível para a reorganização e a concepção de ...
Ely Sena de ALMEIDA   +3 more
openaire   +2 more sources

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

Feeding rate and feeding frequency during the grow-out phase of tambaqui (Colossoma macropomum) in earthen ponds

open access: yesAquaculture Reports
Adequate feeding protocols are extremely important for the technical and economic feasibility of fish production systems. Two feeding rates, 3% and 4% body weight per day (3%BW and 4%BW), and two feeding frequencies, twice and three times a day, were ...
Ana Paula Oeda Rodrigues   +4 more
semanticscholar   +1 more source

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