Results 81 to 90 of about 8,181 (225)

The Efficacy of Clove Seed Aqueous Extract as an Anesthetic Agent on the Stress Response of Mystus cavasius During Transportation

open access: yesAquaculture Research, Volume 2026, Issue 1, 2026.
Mystus cavasius (locally known as Gulsha) is a commercially important catfish in Bangladesh, typically transported live in oxygenated polythene bags without anesthetics, often resulting in severe stress, injuries, and high mortality. This study evaluated the efficacy of clove seed aqueous extract (CAE) as a natural anesthetic at different ...
Nafisa Khatun   +4 more
wiley   +1 more source

Temporary fat storage, an adaptation of some fish species to the waterlevel fluctuations and related environmental changes of the Amazon river

open access: yes, 1985
Analysis of Amazonian freshwater fish exhibited great differences in water- and fat content. Migratory species which deposit huge amounts of eggs in a single spawning act accumulate at high water-level great amounts of fat in various parts of the body ...
Junk, W.
core  

Excreção de amônia por tambaqui (Colossoma macropomum) de acordo com variações na temperatura da água e massa do peixe. [PDF]

open access: yes, 2019
O objetivo deste trabalho foi quantificar taxas de excreção diária de amônia em tambaqui (Colossoma macropomum), principal espécie criada na Amazônia, que podem variar de acordo com a temperatura da água e a massa dos ...
ARAÚJO-LIMA, C. A. R. M.   +2 more
core  

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

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

Informal gold mining and mercury pollution in Brazil [PDF]

open access: yes
The Amazon region has been responsible for a major share of Brazilian gold production in recent years. The region has witnessed a sizable gold rush comparable only to the California gold rush last century.
Biller, Dan, DEC
core  

Growth, yield, water and effluent quality in ponds with different management during tambaqui juvenile production. [PDF]

open access: yes, 2019
Crescimento, produção e qualidade da água e do efluente em viveiro de tambaqui com diferentes manejos durante a ...
GOMES, L. de C.   +2 more
core  

Exigência de lisina para juvenis de tambaqui

open access: yesSemina: Ciências Agrárias, 2018
Objetivou-se determinar a exigência de lisina nas rações para juvenis de tambaqui (Colossoma macropomum). 750 peixes (0,34 ± 0,02g) foram distribuídos em tanques organizados em delineamento de blocos casualizados, com seis tratamentos, cinco repetições em dois blocos e vinte e cinco peixes por parcela, durante cinquenta dias. Foram testados seis níveis
Janayra Cardoso Silva   +7 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

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