Results 21 to 30 of about 6,356 (207)

Dose inseminante para fertilização artificial de ovócitos de jundiá cinza, Rhamdia quelen (Quoy & Gaimardm, 1824) Insemination dose for artificial fertilization of grey jundia oocytes, Rhamdia quelen (Quoy & Gaimardm, 1824)

open access: yesRevista Brasileira de Zootecnia, 2006
Para determinação da dose inseminante ideal na fertilização artificial de ovócitos de jundiá cinza (Rhamdia quelen), foram selecionadas duas fêmeas com papila urogenital avermelhada, abdômen arredondado e liberação de ovócitos de cor e tamanho uniforme e
Robie Allan Bombardelli   +4 more
doaj   +1 more source

Biologia do jundiá Rhamdia quelen (Teleostei, Pimelodidae) Biology of Rhamdia quelen (Teleostei, Pemelodidae)

open access: yesCiência Rural, 2000
O jundiá, Rhamdia quelen, é encontrado desde o centro da Argentina até o sul do México, e seu cultivo está aumentando no sul do Brasil. Portanto, o objetivo desta revisão é apresentar os dados existentes até o momento sobre a biologia dessa espécie.
Levy de Carvalho Gomes   +3 more
doaj   +1 more source

Evidence for the true type-locality of Rhamdia quelen (Siluriformes: Heptapteridae), and the geographical origin and invalid neotype designation of four of its synonyms [PDF]

open access: yesNeotropical Ichthyology, 2020
Historical information on the probable type-locality of Pimelodus quelen and of its four junior synonyms that share the same neotype, Pimelodus namdia, Pimelodus sebae, Heterobranchus sextentaculatus, and Silurus rivularis, is presented and discussed ...
Stefan Koerber, Roberto E. Reis
doaj   +1 more source

Reappraisal of Rhamdia branneri Haseman, 1911 and R. voulezi Haseman, 1911 (Siluriformes: Heptapteridae) from the rio Iguaçu with notes on their morphometry and karyotype

open access: yesNeotropical Ichthyology
The species Rhamdia branneri Haseman, 1911 and the subspecies Rhamdia branneri voulezi Haseman, 1911 from rio Iguaçu are currently recognized as synonyms of Rhamdia quelen (Quoy & Gaimard, 1824).
Julio Cesar Garavello   +1 more
doaj   +1 more source

AVALIAÇÃO ERITROCITÁRIA E BIOQUÍMICA DE JUNDIÁS (Rhamdia quelen) SUBMETIDOS À DIETA COM DIFERENTES NÍVEIS PROTÉICOS E ENERGÉTICOS

open access: yesCiência Animal Brasileira, 2011
Objetivou-se com este trabalho avaliar o efeito de diferentes rações sobre os parâmetros eritrocitários (hemácias, hemoglobina e hematócrito) e bioquímicos (glicose, albumina e proteína) de jundiás (Rhamdia quelen).
Leticia Hayashi Higuchi   +5 more
doaj   +1 more source

ASSOCIAÇÃO ENTRE A PRESENÇA DE UM FATOR DE 38 kDa NO PLASMA SEMINAL E A INIBIÇÃO DA MOTILIDADE ESPERMÁTICA NO JUNDIÁ Rhamdia quelen

open access: yesCiência Animal Brasileira, 2010
Fatores proteicos tem sido indentificados no plasma seminal de peixes e mamíferos e, em algumas situações, associados com indicadores de qualidade espermática.
Vinicius Farias Campos   +7 more
doaj   +1 more source

Gross brain morphology of Rhamdia quelen (Quoy & Gaimard 1824) (Ostariophysi: Siluriformes: Heptapteridae)

open access: yesPapéis Avulsos de Zoologia, 2018
The brain gross morphology of Rhamdia quelen is described and compared with seven species of six genera of Heptapteridae. Interspecific variation in shape, size, and position of brain subdivisions was observed in all examined species.
Vitor Pimenta Abrahão   +2 more
doaj   +1 more source

Molecular phylogeny reveals a new species of ghost electric knifefish Porotergus Ellis 1912 (Gymnotiformes: Apteronotidae), from the Amazon basin

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of ghost electric knifefish, Porotergus sambaibensis sp. nov., is described from the Javaés River, a tributary of the Araguaia River in Brazil. The new species was assigned to the genus Porotergus as the closest relative to Porotergus gimbeli through maximum likelihood reconstruction of a concatenated multilocus dataset ...
Marina B. Mendonça   +4 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert   +5 more
wiley   +1 more source

Genetic variability of captive populations of Rhamdia quelen (Teleostei: Pimelodidae) using microsatellite markers

open access: yesBiotemas, 2017
The analysis of genetic variability in populations that are candidates for breeding programs is important for selecting a base population, which maximizes genetic divergence.
Marina Virmond   +3 more
doaj   +1 more source

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