Results 141 to 150 of about 4,851 (152)
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Genetica, 2009
In the present study, the chromosomal mechanisms of nucleolar dominance were analyzed in the hybrid lineage "Piaupara," which resulted from crossing the Leporinus macrocephalus female (Piauçu) and L. elongatus male (Piapara) fish. The analyses demonstrated that, in the hybrid, the nucleolar region inherited from L.
Fábio Porto-Foresti +2 more
exaly +4 more sources
In the present study, the chromosomal mechanisms of nucleolar dominance were analyzed in the hybrid lineage "Piaupara," which resulted from crossing the Leporinus macrocephalus female (Piauçu) and L. elongatus male (Piapara) fish. The analyses demonstrated that, in the hybrid, the nucleolar region inherited from L.
Fábio Porto-Foresti +2 more
exaly +4 more sources
Biomarcadores histológicos: toxicidade crônica pelo Roundup em piauçu (Leporinus macrocephalus) [PDF]
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2009 Avaliou-se o uso de brânquias, fígado e rins como biomarcadores histológicos em ensaio de toxicidade crônica com o herbicida Roundup® em piauçu (Leporinus. macrocephalus). Para tanto, os animais foram expostos a 1,58mg/L, dose equivalente a 1/10 da CL50 para a espécie por 14 e 28 dias, sendo utilizados cinco animais por tratamento correspondentes aos ...
Luiz Vitor Oliveira Vidal
exaly +4 more sources
A novel butyrylcholinesterase from serum of Leporinus macrocephalus, a Neotropical fish
Biochimie, 2006We show here that serum of piaussu, a Neotropical characin fish, has the highest butyrylcholinesterase activity so far described for humans and fish. To clarify whether this cholinesterase could protect piaussu against anticholinesterase pesticides by scavenging organophosphates, we purified it 1700-fold, with a yield of 80%. Augmenting concentrations (
J B, Salles +6 more
openaire +2 more sources
Micron, 2011
The present study examined the testicular structure and the seminal pathway in freshwater fish Leporinus macrocephalus (Garavello and Britski, 1988). Twenty-five specimens of this species were studied. Testicular structure was analyzed using light and transmission electron microscopy.
Munoz, Mario Esteban +3 more
openaire +3 more sources
The present study examined the testicular structure and the seminal pathway in freshwater fish Leporinus macrocephalus (Garavello and Britski, 1988). Twenty-five specimens of this species were studied. Testicular structure was analyzed using light and transmission electron microscopy.
Munoz, Mario Esteban +3 more
openaire +3 more sources
Physiology & Behavior, 2015
The possibility that fish experience pain has been denied based on the absence of the neural substrates to support this "experience". In this context, the identification of brain regions involved in nociception modulation could provide important insights regarding the processing of nociceptive information in fish.
Carla Patricia Bejo, Wolkers +3 more
openaire +2 more sources
The possibility that fish experience pain has been denied based on the absence of the neural substrates to support this "experience". In this context, the identification of brain regions involved in nociception modulation could provide important insights regarding the processing of nociceptive information in fish.
Carla Patricia Bejo, Wolkers +3 more
openaire +2 more sources
Bulletin of Environmental Contamination and Toxicology, 2004
I F, Barcarolli, C B R, Martinez
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I F, Barcarolli, C B R, Martinez
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9.P6. Alarm reaction in a South American teleost fish piauçu Leporinus macrocephalus
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007A. Barbosa Júnior, A. Hoffman
openaire +1 more source
Farinha de vísceras de aves na alimentação de alevinos de piavuçu (Leporinus macrocephalus)
Ciencia Rural, 2007Wilson Rogerio Boscolo +2 more
exaly