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Intraspecific chromosome analysis in Rhamdia quelen (Siluriformes, Heptapteridae)
2010We studied the chromosomes of Rhamdia quelen. All specimens presented 2n = 58 and 36m+16sm+6st and FN = 116 and showed metacentric B chromosomes of medium size. The specimens from Água dos Patos river, Água das Pedras river and fish farm station showed a secondary constriction in the short arm of pair 28 (st), coincident with the NOR, while in the ...
Oliveira de Moraes, Vivian Patricia +2 more
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Nociceptive-like behavior and analgesia in silver catfish (Rhamdia quelen)
Physiology & Behavior, 2019Fish are useful animal models in research and have been employed in developing new pharmacological approaches. This study aimed to establish the use of silver catfish (Rhamdia quelen) as an animal model to evaluate antinociceptive activity. Initially, different concentrations of acetic acid (2.5-20%), formalin 1% (1-10 μL), menthol 0.5% (1-10 μL) or ...
Patrícia, Rodrigues +5 more
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Hematologic and serum biochemical values for jundiá (Rhamdia quelen)
Fish Physiology and Biochemistry, 2004The determination of hematologic parameters for jundia Rhamdia quelencultivated in ponds is an easy and useful tool for the control of their sanitary and nutritional conditions. In the present work hematologic indices (RBC, WBC, Ht, Hb, MCV, MCH, MCHC), electrolytes (Cl, Na, K, Ca, Mg, P), metabolic products (creatinine, urea, ammonia, glucose, total ...
Adriana Borges +4 more
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Innate immune response of silver catfish (Rhamdia quelen) exposed to atrazine
Fish & Shellfish Immunology, 2012The impact of agrichemicals on aquatic vertebrate species has been a matter of increasing concern to researchers and environmentalist. In the present study, we evaluated the effects of a sublethal concentration of atrazine (10% of the LC(50-96 h)), a world-wide used herbicide, on the innate immune system of silver catfish (Rhamdia quelen).
Luiz Carlos, Kreutz +4 more
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Effects of low concentrations of ibuprofen on freshwater fish Rhamdia quelen
Environmental Toxicology and Pharmacology, 2018Ibuprofen is a pharmaceutical drug widely used by the global population and it has been found in aquatic ecosystems in several countries. This study evaluated the effects of ibuprofen in environmental concentrations (0, 0.1, 1 and 10 μg/L) on the freshwaterspecies Rhamdia quelen exposed for 14 days.
Francielle Tatiana, Mathias +7 more
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