Results 1 to 10 of about 207 (158)

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.
Bárbara Correa Bianchini   +8 more
doaj   +2 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

Morphometric Evaluations and Yields from Commercial Cuts of Black Pacu Colossoma macropomum (Cuvier, 1818) in Different Body Weights. [PDF]

open access: yesScientificWorldJournal, 2021
For the Amazon, it is important to encourage the production of native fish, since there are several species of zootechnical interest. For this, it is necessary to know the species since its acquisition, production, processing, and marketing. Therefore, the aim of this study was to analyze the yield, correlations, and profitability of different cuts of ...
Cavali J   +6 more
europepmc   +2 more sources

Celiotomy to collect spermatogonial stem cells in <i>Brycon orbignyanus</i> for species preservation. [PDF]

open access: yesAnim Reprod
Abstract Surgical techniques in aquatic species are underdeveloped, despite these species comprising a significant superclass among vertebrates. In the context of species preservation, studies involving the use of reproductive tissues typically involve the euthanasia of donors.
da Silva LG   +12 more
europepmc   +5 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

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 Ribeiro
exaly   +7 more sources

Benefits of Adding Virginiamycin to Arapaima gigas (Schinz, 1822) Diet Cultivated in the Brazilian Amazon. [PDF]

open access: yesScientifica (Cairo), 2020
The aim of this study was to evaluate the physiological, zootechnical, and environmental benefits of the use of growth‐promoting virginiamycin in the pirarucu diet. The research was conducted at the Carlos Eduardo Matiazze Fish Center, Federal University of Rondônia.
Cavali J   +8 more
europepmc   +2 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.
Claudete Mangolin, L Vargas
exaly   +4 more sources

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