Reproductive dynamics of Leporinus obtusidens captured downstream from an important hydropower Station in Brazil [PDF]
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013 This study evaluated the reproductive dynamics and gonadal morphology of piaparas (Leporinus obtusidens) captured downstream from the Funil Hydroelectric Power Station. The 107 piaparas evaluated were captured monthly from Sep 2006 to Aug 2007.
E.S. Andrade +5 more
doaj +13 more sources
Glyphosate on digestive enzymes activity in piava (Leporinus obtusidens) [PDF]
Ciência Rural, 2014 The effects of glyphosate, a nonselective herbicide (1.0 or 5.0mg L-1) on digestive enzymes activity (stomach and intestine) were evaluated in juveniles of piava (Leporinus obtusidens) after 90 days of exposure.
Joseânia Salbego +6 more
doaj +3 more sources
Alimentação da piava (Leporinus obtusidens) com diferentes fontes protéicas [PDF]
Ciência Rural, 2006 A piava (Leporinus obtusidens) é um peixe nativo de grande importância nas bacias hidrográficas do Sul do Brasil. Neste estudo, verificou-se o crescimento de juvenis de piava alimentados durante 60 dias com três dietas contendo diferentes fontes ...
João Radünz Neto +6 more
doaj +4 more sources
Comparative analysis of sex chromosomes in Leporinus species (Teleostei, Characiformes) using chromosome painting. [PDF]
BMC Genet, 2013 BACKGROUND: The Leporinus genus, belonging to the Anostomidae family, is an interesting model for studies of sex chromosome evolution in fish, particularly because of the presence of heteromorphic sex chromosomes only in some species of the genus.
Parise-Maltempi PP +6 more
europepmc +5 more sources
Suplementação da dieta de alevinos de piauçu (Leporinus obtusidens) com vitamina C [PDF]
Scientia Agricola, 1999 O experimento teve como objetivo avaliar a influência da suplementação de vitamina C na dieta sobre o desempenho de alevinos de piauçu (Leporinus obtusidens).
Ricardo Frankein de Mello +3 more
doaj +3 more sources
Acta Scientiarum: Biological Sciences, 2008 Este trabalho teve como objetivo analisar os efeitos da temperatura sobre a performance de juvenis de Leporinus cf. obtusidens (Valencienves, 1847) (Characiformes, Anostomidae), em relação a variações no comprimento total, ao peso total, ao incremento em
Pitagoras Augusto Piana +2 more
doaj +3 more sources
Utilização de óleos vegetais em dietas para juvenis de piava (Leporinus obtusidens) [PDF]
Revista de Ciências Agroveterinárias, 2017 Objetivou-se avaliar a resposta de piavas a utilização de óleos vegetais nas dietas, sob o desempenho, deposição nutricional e atividade de enzimas digestivas.
Taida Juliana Adorian +5 more
doaj +2 more sources
Chromosome mapping of repetitive sequences in Anostomidae species: implications for genomic and sex chromosome evolution [PDF]
Molecular Cytogenetics, 2012 Background Members of the Anostomidae family provide an interesting model system for the study of the influence of repetitive elements on genome composition, mainly because they possess numerous heterochromatic segments and a peculiar system of female ...
da Silva Edson Lourenço +2 more
doaj +2 more sources
Diel variation in the ascent of fishes up an experimental fish ladder at Itaipu Reservoir: fish size, reproductive stage and taxonomic group influences [PDF]
Neotropical Ichthyology, 2007 In this study, we evaluated the fish ascent in the experimental ladder at Itaipu Reservoir (Paraná State, Brazil), in relation to diel variation, fish size, reproductive stages and species composition.
Domingo Rodriguez Fernandez +3 more
doaj +2 more sources
Food deprivation and compensatory growth in juvenile piava, Leporinus obtusidens
Boletim do Instituto de Pesca, 2018 The growth and body composition of Leporinus obtusidens juveniles (32.0 ± 8.0 g; 137.3 ± 11.9 mm) were evaluated under food deprivation followed by refeeding.
Alex Pires de Oliveira NUÑER +1 more
doaj +1 more source