Results 51 to 60 of about 5,979 (213)

Passage performance of long-distance upstream migrants at a large dam on the Paraná River and the compounding effects of entry and ascent

open access: yesNeotropical Ichthyology
This paper presents results of a fishway evaluation performed at the Engenheiro Sérgio Motta Hydroelectric Power Plant (known as Porto Primavera) - CESP, Paraná River, Brazil.
Ricardo Luiz Wagner   +5 more
doaj   +1 more source

Recentes estudos de infecções parasitárias em peixes cultivados no Estado de São Paulo, Brasil

open access: yesActa Scientiarum: Animal Sciences, 2008
O presente trabalho relata os casos de doenças diagnosticadas em peixes no Estado de São Paulo, Brasil, entre janeiro/1999 e dezembro/2000. Durante o ano de 1999, os monogenéticos foram os parasitos mais importantes, com ocorrência de 72,9%, seguidos de ...
Maurício Laterça Martins   +5 more
doaj   +1 more source

Exposição aguda de peixes Piaractus mesopotamicus a nano-tio2 e radiação UV. [PDF]

open access: yes, 2015
Resumo: As diversas propriedades da nanopartícula de dióxido de titânio (nano-TiOj) devem ser consideradas na avaliação da ua ecotoxicidade. Este estudo buscou avaliar o efeito da co-exposição de peixe ao nano- Ti02 e a radiação ultravioleta a níveis ...
CASTRO, V. L. S. S. de   +3 more
core  

Practical Diets Formulated With Different Plant‐Based Energy Ingredients Modulate Nutrient Utilization and Gut Morphology in Tambaqui (Colossoma macropomum)

open access: yesAquaculture Nutrition, Volume 2026, Issue 1, 2026.
Despite the increasing use of plant‐based energy ingredients in aquaculture, few studies have evaluated the digestibility of practical diets formulated with these ingredients in an integrated manner with the metabolic responses, intestinal health, and productive performance of fish. This limits the understanding of their nutritional effects. This study
Jeisson Emerson Casemiro Ferrari   +6 more
wiley   +1 more source

New host records and description of the egg of Anacanthorus penilabiatus (Monogenea, Dactylogyridae)

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Anacanthorus penilabiatus is referred parasitizing the type-host Piaractus mesopotamicus (Serrasalmidae) and two new hosts, Colossoma macropomum and C.
MC Pamplona-Basilio, A Kohn, VA Feitosa
doaj   +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

Cross-amplification of heterologous microsatellite markers in Piracanjuba

open access: yesCiência Rural, 2017
: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years.
Pedro Luiz de Castro   +8 more
doaj   +1 more source

Digestibilidade aparente da proteína e da energia de dietas contendo diferentes fontes de fibra para juvenis de pacu (Piaractus mesopotamicus). [PDF]

open access: yes, 2012
O presente estudo foi conduzido com o objetivo de avaliar o efeito da utilização de diferentes ingredientes fibrosos sobre a digestibilidade da proteína e da energia de juvenis de dietas para juvenis de pacu.
FABREGAT, T. E. H. P.   +3 more
core  

Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance

open access: yesFood Science &Nutrition, Volume 13, Issue 11, November 2025.
Even though histamine plays an important role in human health, it has been associated with food intoxication and intolerance episodes. The most relevant, current state of knowledge regarding histamine's biochemical and health aspects is provided. Histamine levels are provided for 17 food groups, including 335 food types and 11,437 samples, allowing ...
Maria Beatriz A. Gloria   +6 more
wiley   +1 more source

Estimulantes alimentares para larvas de pacu Feeding stimulants for pacu lavae

open access: yesRevista Brasileira de Zootecnia, 2011
Este estudo foi realizado com o objetivo de investigar o efeito estimulante de cinco aminoácidos (alanina, arginina, glicina, histidina e lisina) da betaína e de suas misturas sobre a taxa de ingestão de dieta microencapsulada durante o desenvolvimento ...
Marcelo Borges Tesser   +1 more
doaj   +1 more source

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