Results 1 to 10 of about 147 (110)

Dispersion of hooks on the anal fins of primary and secondary males in Brycon orbignyanus (Characiformes: Bryconidae): a secondary sexual trait for breeder selection [PDF]

open access: yesNeotropical Ichthyology
Brycon orbignyanus exhibits seasonal reproduction where males can be distinguished from females by the roughness present in the anal fin of the specimens that represents a secondary sexual characteristic known as hooks.
Barbara Correa Bianchini   +2 more
exaly   +4 more sources

Conservation status and bio-ecology of Brycon orbignyanus (Characiformes: Bryconidae), an endemic fish species from the Paraná River basin (Brazil) threatened with extinction [PDF]

open access: yesNeotropical Ichthyology, 2019
Brycon orbignyanus is an endemic species from La Plata basin whose stocks have been presenting significant reductions throughout the Paraná River. Brycon orbignyanus is categorized as an endangered species. This study evaluated aspects of the bio-ecology
Livia Helena Tonella   +2 more
exaly   +3 more sources

Water quality and zooplankton in tanks with larvae of Brycon Orbignyanus (Valenciennes, 1949) Qualidade da água e zooplâncton em tanques de larvicultura de Brycon orbignyanus (Valenciennes, 1949) [PDF]

open access: yesBrazilian Journal of Biology, 2008
Due to the importance of water variables conditions and available food in the development and survival of fish larvae, the current research evaluates the effects of two different food treatments (ration + zooplankton and only zooplankton) and water ...
LH. Sipaúba-Tavares   +2 more
doaj   +6 more sources

Curvas de crescimento morfométrico de piracanjuba (Brycon orbignyanus) Morphometric growth curves of piracanjuba (Brycon orbignyanus)

open access: yesCiência e Agrotecnologia, 2009
Conduziu-se um experimento no setor de piscicultura da Universidade Federal de Lavras M.G., com o objetivo de estabelecer curvas de crescimento morfométrico em função do peso corporal para a piracanjuba (Brycon orbignyanus). Alevinos de piracanjuba foram
Juliana Sampaio Guedes Gomiero   +5 more
doaj   +2 more sources

Novel microsatellite markers for the endangered neotropical fish Brycon orbignyanus and cross-amplification in related species

open access: yesItalian Journal of Animal Science, 2018
Brycon orbignyanus is a neotropical fish found in several South American countries. This species has high ecological importance and is included in the list of fish threatened with extinction.
Felipe Pinheiro De Souza   +2 more
exaly   +2 more sources

Spermatic abnormalities of piracanjuba Brycon orbignyanus (Valenciennes, 1849) after cryopreservation [PDF]

open access: yesBrazilian Journal of Biology, 2011
The objective of this research was to verify the presence of spermatic abnormalities on semen of Brycon orbignyanus after cryopreservation. Semen was collected from ten four-year-old males who presented secondary reproductive characteristics for migrating fish.
Ricardo Pereira Ribeiro
exaly   +7 more sources

Caracterização genética de Brycon orbignyanus utilizando o sistema seminatural Genetic characterization of Brycon orbignyanus using the semi-natural system

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2010
Avaliou-se o efeito do sistema seminatural na diversidade genética de um estoque de Brycon orbignyanus, utilizado em programas de repovoamento, com o marcador molecular RAPD.
N.M. Lopera-Barrero   +5 more
doaj   +2 more sources

Viabilidade espermática do sêmen de piracanjuba (Brycon orbignyanus) resfriado a 4°C Spermatic viability of piracanjuba (Brycon orbignyanus) semen cooled at 4°C

open access: yesRevista Brasileira de Zootecnia, 2004
Os efeitos de três meios diluidores (BTS+KCl - D1, BTS+2KCL - D2 e BTS+Citrato de Sódio - D3), considerando três diferentes tempos de resfriamento (0, 72 e 144 horas), foram analizados no sêmen de Piracanjuba (Brycon orbignyanus) a 4°C. Testou-se, ainda,
Luis David Solis Murgas   +3 more
doaj   +2 more sources

Caracterização genética de Brycon orbignyanus utilizando o sistema seminatural [PDF]

open access: yesArquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2010
Avaliou-se o efeito do sistema seminatural na diversidade genética de um estoque de Brycon orbignyanus, utilizado em programas de repovoamento, com o marcador molecular RAPD. Vinte e quatro reprodutores, 12 machos e 12 fêmeas e 95 larvas da progênie foram analisados.
L Vargas, Claudete Aparecida Mangolin
exaly   +4 more sources

Avaliação espermática pós-descongelamento em piracanjuba (Brycon orbignyanus, Vallenciennes, 1849) Sperm evaluation of piracanjuba fish (Brycon orbignyanus, Vallenciennes, 1849), after thawing

open access: yesRevista Brasileira de Zootecnia, 2003
O experimento foi realizado com o objetivo de testar o efeito de dois meios diluidores (Glicose 5% e água de côco) no congelamento do sêmen de piracanjuba (Brycon orbignyanus, Vallenciennes, 1849) e dois descongelamentos do sêmen (60ºC durante 5 segundos
Luis David Solis Murgas   +2 more
doaj   +2 more sources

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