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| Registros recuperados: 17 | |
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| Drumond,Gustavo Valadares Fonseca; Caixeiro,Ana Paula de Almeida; Tavares-Dias,Marcos; Marcon,Jaydione Luiz; Affonso,Elizabeth Gusmão. |
| O presente estudo comparou os níveis plasmáticos de glicose, proteínas totais, uréia, triglicerídeos e colesterol, a contagem de eritrócitos, leucócitos e trombócitos entre alevinos e juvenis de Arapaima gigas (Osteoglociformes, Arapaimidae) de uma piscicultura semi-intensiva de Manaus, estado do Amazonas, Brasil. Os alevinos de A. gigas apresentaram níveis significativamente (p<0,05) menores de proteínas totais, triglicerídeos, uréia e Volume Corpuscular Médio (VCM) e maior concentração de glicose, colesterol e hemoglobina, contagem de eritrócitos, hematócrito e Concentração da Hemoglobina Corpuscular Média (CHCM) quando comparados aos juvenis. Porém, não houve diferença significativa (p>0,05) no número de trombócitos e leucócitos totais entre... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivo; Eritrócitos; Idade; Leucócitos; Sangue. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000300020 |
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| Tavares-Dias,Marcos; Tenani,Rosilene A; Gioli,Leonardo D; Faustino,Christiane D. |
| Hematological parameters of freshwater fish Piaractus mesopotamicus (Holmberg, 1887) kept in an intensive polyculture system were determined. The correlations among these parameters as well as those between the parameters and the biometric data (total weight and standard length) were also analyzed. Erythrocytes count was 1.708±0.42 x 10(6)/µl, hemoglobin 6.6±2.0 g% of blood and hematocrit 32.5±4.6%, mean corpuscular volume (MCV) 209.8±69.5%, mean corpuscular hemoglobin (MCH) 40.2±5.6 pg and mean corpuscular hemoglobin concentration (MCHC) 21.4±8.4%. The percentage of defense blood cells including leucocytes and thrombocytes, was studied. The percentage of thrombocytes was 61.4±10.0%, lymphocytes 21.7±1.8%,neutrophils 10.4±11.0%, monocytes 4.7±3.3% and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piaractus mesopotamicus; Blood; Erythrocytes; Freshwater fish; Leucocytes; Thrombocytes. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200008 |
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| Tavares-Dias,Marcos; Melo,José Fernando Bibiano; Moraes,Gilberto; Moraes,Flávio Ruas de. |
| As características hematológicas do jundiá Rhamdia quelen Quoy & Gaimard, 1824 (Osteichthyes: Pimelodidae), oriundo de cativeiro foram estudadas. Determinou-se o valor médio da contagem de eritrócitos, taxa de hemoglobina, hematócrito, volume corpuscular médio (VCM), concentração de hemoglobina corpuscular média (CHCM) e distribuição percentual de células sangüíneas de defesa orgânica. As células sangüíneas de defesa orgânica (leucócitos e trombócitos) foram identificadas e caracterizadas morfologicamente. Trombócitos e linfócitos foram as células sangüíneas de defesa orgânica mais freqüente nas extensões sangüíneas do R. quelen. A análise de regressão mostrou correlação linear negativa entre o percentual de trombócitos e linfócitos. Os resultados... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hematologia; Leucócitos; Peixe de água doce; Rhamdia quelen; Sangue. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782002000400024 |
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| Tavares-Dias,Marcos; Affonso,Elizabeth Gusmão; Oliveira,Sarah Ragonha; Marcon,Jaydione Luiz; Egami,Mizue Imoto. |
| The aim of this study was not only to determine the red blood cells parameters, thrombocyte and leukocyte counts in farmed Brycon amazonicus (matrinxã), to compare these parameters among Bryconinae species from literature, and also to investigate the presence of special granulocytic cells in these fish. The results of the blood cells parameters here established for farmed B. amazonicus, a species of great economic importance in Brazilian aquaculture, could help a better understanding of the blood features in natural populations of this Amazon species. Blood parameters varied between Bryconinae species investigated, mainly the red blood cell counts, hemoglobin, hematocrit and mean corpuscular volume (MCV). The presence of the blood granulocytes, neutrophils... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leukocytes; Freshwater fish; Blood; Amazon; Brycon amazonicus; Bryconinae. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000400026 |
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| Ranzani-Paiva,Maria José Tavares; Tavares-Dias,Marcos. |
| The present work describes mean values of hepatosomatic relation (HSR), splenosomatic relation (SSR) and viscerosomatic relation (VSR) in mullet, Mugil platanus Günther, 1880 (Mugilidae) from Cananéia lagoon-stuarine region, São Paulo, Brazil. Parasites of the following taxonomic categories were found in the respective organs - gills: Monogenean helminths, Trichodinidae, Copepoda and Hirudinea; blood: Haemogregarina mugili Carini, 1932 (Apicomplexa) e Trypanosoma froesi Lima, 1976 (Sarcomastigophora) and liver: cysts of Phagicola sp. The average values of red blood cells count (RBC), hemoglobin rate (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC) of male, female and indifferentiaed, were similar. However, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mugil platanus; Erithrocytes; Hepatosomatic relation; Splenosomatic relation; Viscerosomatic relation; Parasites. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300019 |
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| Tavares-Dias,Marcos; Martins,Maurício L.; Moraes,Flávio R.. |
| The present work studied protozoan parasites of cultivated fishes (N = 433) from two feefishing farm situated in Franca, São Paulo, Brazil, during a period of April 1997 through March 1999. Specimens of piauçú Leporinus macrocephalus Garavello & Britski, 1988 (Anostomidae), pacu Piaractus mesopotamicus Holmberg, 1887 (Characidae) carp Cyprinus carpio Linnaeus, 1758 (Cyprinidae), Tillapia rendalli Boulenger, 1896 (Cichlidae), nile-tilapia Oreochromis niloticus Linnaeus, 1758 (Cichlidae), matrinxã Brycon cephalus Günther, 1869 (Characidae) and tambacu hybrid (male of P. mesopotamicus x female of Colossoma macropomum Cuvier, 1818) were collected. The fishes were parasitized with protozoans Ichthyophthirius multifiliis Fouquet, 1876 (Protozoa),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ichthyophthirius multifiliis; Freshwater fish; Parasites; Piscinoodinium pillulare; Trichodina sp. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500005 |
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| Tavares-Dias,Marcos; Moraes,Flávio R.; Martins,Maurício L.; Kronka,Sérgio N.. |
| Metazoan fauna from cultivated fishes (N = 433) in two feefishing farm of Franca, State of São Paulo, Brazil, was studied during a period of April 1997 through March 1999. Specimens of piauçú Leporinus macrocephalus Garavello & Britski, 1988 (Anostomidae), pacu Piaractus mesopotamicus Holmberg, 1887 (Characidae), carp Cyprinus carpio Linnaeus, 1758 (Cyprinidae), Tillapia rendalli Boulenger, 1896 (Cichlidae), nile-tilapia Oreochromis niloticus Linnaeus, 1758 (Cichlidae), matrinxã Brycon cephalus Günther, 1869 (Characidae) and tambacu hybrid (male of P. mesopotamicus x female of Colossoma macropomum Cuvier, 1818) were collected. A total of 29.3% was parasitized by monogenean, 9.7% with crustacean (copepodits and adults of Lernaea cyprinacea Linnaeus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacean; Copepodits; Freshwater fish; Metazoans; Monogenean; Myxosporeans; Parasites; Helminths. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500006 |
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| Santos,Evandro Freitas; Tavares-Dias,Marcos; Pinheiro,Douglas Anadias; Neves,Ligia Rigôr; Marinho,Renata das Graças Barbosa; Dias,Márcia Kelly Reis. |
| O objetivo principal deste trabalho foi estudar a parasitofauna e a relação hospedeiro- parasito em tambaqui Colossoma macropomum cultivados em tanques-rede no Rio Matapi, município de Santana, estado do Amapá, região da Amazônia oriental, Brasil. Foram examinados 60 tambaquis, dos quais 96,7% estavam parasitados por protozoários Ichthyophthirius multifiliis (Ciliophora) e Piscinoodinium pillulare (Dinoflagellida), monogenoideas Mymarotheciun boegeri e Anacanthorus spathulatus (Dactylogyridae) e sanguessugas Glossiiphonidae gen. sp. (Hirudinea). Os maiores níveis de parasitismo foram causados por protozoários I. multifiliis e P. pillulare e os menores por sanguessugas Glossiiphonidae gen. sp. Porém, os índices de infestação não tiveram efeitos na saúde dos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tanque-rede; Parasitos; Peixe; Prevalência; Sanidade. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000100013 |
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| Tavares-Dias,Marcos; Schalch,Sérgio H.C.; Martins,Maurício L.; Onaka,Eduardo M.; Moraes,Flavio R.. |
| Fifty six specimens of the hybrid "tambacu" (Piaractus mesopotamicus Holmberg, 1887 male x Colossoma macropomum Cuvier, 1818 female) were collected from fishfarm of Guariba, São Paulo, to evaluate their haematology. Fishes presented 400.0 to 3,100.0 g total weight and 20.0 to 52.0 cm total length. Haemoglobin, haematocrit, mean corpuscular haemoglobin content (MCHC) and percentage of defense blood cells including leucocytes and thrombocytes, were studied. Statistical analysis showed positive correlation (P<0.01) between haematocrit, MCHC and haemoglobin rate. Nevertheless, thrombocytes and lymphocytes showed negative correlation (P<0.01). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tambacu hybrid; Haematology; Haemoglobin; Haematocrit; Leucocytes; Thrombocytes. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000400002 |
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| Tavares-Dias,Marcos; Oliveira-Júnior,Antônio Aderson; Marcon,Jaydione Luiz. |
| The aim of this paper is to compare three different methods for counting white blood cells [WBC] (Natt and Herrick method, estimation with 1,000 and 2,000 erythrocytes) and three methods for counting total thrombocytes [TT] (Wojtaszek method, estimation with 1,000 and 2,000 erythrocytes) in a South American freshwater turtle species, Podocnemis expansa, Schweigger 1812 (Reptilia, Pelomedusidae). Direct WBC counts using the Natt and Herrick method showed limitations, which are discussed here. The WBC and TT counts using 1,000 erythrocytes from blood smears are not recommended for Amazon turtles nor other reptilian species, since wide variation in counts can be observed. Estimation methods for determining WBC and TT based on 2,000 erythrocytes of blood... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon turtles; Blood; Leukocytes; Podocnemis expansa; Thrombocytes. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000200020 |
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| Arraes,Débora Regina dos Santos; Tavares-Dias,Marcos. |
| Predation and alteration of microhabitats may represent high risk for nesting of Amazonian turtles. This study aimed at investigating the nesting and body parameters of neonates of Podocnemis unifilis in the Araguari River basin, State of Amapá, Brazil. The spawning sites of this turtle were monitored along the Falsino River (a region with two reserves) and in the urban area of the Porto Grande city along the Araguari River, from August to December 2011. A total of 180 nests were found and the nesting occurred from September to November, with prevalence in October. Eggs hatching occurred in December. The mean incubation period was 63.5 ± 5.2 days and the eggs hatching success was 25%. However, approximately 80% of the nests had suffered predation mainly by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Chelonian; Eggs; Predation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000300012 |
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| Silva,Ronilson Macedo; Tavares-Dias,Marcos; Dias,Maycon Willian Reis; Dias,Márcia Kelly Reis; Marinho,Renata das Graças Barbosa. |
| The objective of this work was to evaluate the parasitic fauna of hybrid tambacu (Colossoma macropomum x Piaractus mesopotamicus) from fish farms and the host-parasite relationship. A hundred and fourteen fish were collected from four fish farms in Macapá, in the state of Amapá, Brazil, 80.7% of which were infected by: Ichthyophthirius multifiliis (Ciliophora); Piscinoodinium pillulare (Dinoflagellida); Anacanthorus spatulatus, Notozothecium janauachensis, and Mymarothecium viatorum (Monogenoidea); Neoechinorhynchus buttnerae (Acanthocephala); Cucullanus colossomi (Nematoda); Perulernaea gamitanae (Lernaeidae); and Proteocephalidae larvae (Cestoda). A total of 8,136,252 parasites were collected from the examined fish. This is the first record of N.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Ichthyophthirius multifiliis; Piaractus mesopotamicus; Ectoparasite; Native fish; Host-parasite relationship. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800037 |
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| Lima,Jô de Farias; Montagner,Daniel; Duarte,Sting Silva; Yoshioka,Eliane Tie Oba; Dias,Márcia Kelly Reis; Tavares-Dias,Marcos. |
| Abstract: The objective of this work was to evaluate a recirculating aquaculture system using biological aerated filters in tanks for tambaqui (Colossoma macropomum) fingerlings farming, with two initial stocking densities (1.4 and 2.5 kg m-3). The biofilters had similar materials (media) and the same granulometric standards, but inverted orders of the media (classic and inverted). The following were monitored for 90 days: water quality; zootechnical, parasitological, and hematological parameters; and hematimetric indices. Water temperature, oxygen levels, pH, electrical conductivity, and dissolved solids concentration were compatible with tambaqui farming and did not differ between the different biofilters and densities. The ammonia and nitrite value was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Aquaculture; Parasites; Production. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101103 |
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| Tavares-Dias,Marcos; Martins,Maurício L.; Moraes,Flávio R.. |
| The mean values of hepatosomatic relation (HSR), splenosomatic relation (SSR) and relative condition factor (Kn) in Nile tilapia (Oreochromis nilolicus Trewavas, 1983); pacu (Piaractus mesopolamicus Holmberg, 1887); piauçu (Lepori-nus macrocephalus Garavello & Britski, 1988) and tambacu hybrid (P. mesopotamicus male x Colossoma macropomum Cuvier, 1818 female) are described. The experiment was carried out from feefishing farm situated in Franca, São Paulo State, Brazil. Nile tilapia showed the greatest HSR compared to pacu, piauçu and tambacu. Although, in the last three fishes the relation was similar. The SSR between tilapia and piausu was similar, but smaller than observed in pacu and tambacu. Nevertheless, SSR in pacu and tambacu was different.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatosomatic relation; Splenosomatic relation; Oreochromis; Nilolicus; Piaractus mesopotamicus; Leporinus macrocephalus; Tambacu hybrid. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100024 |
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| Tavares-Dias,Marcos; Monteiro,Adriana Maria de Castro; Affonso,Elizabeth Gusmão; Amaral,Kárlia Dalla Santa. |
| Farming of native carnivore fish species has drawn attention due to their promising use in aquaculture. Among these species, tucunaré of the genus Cichla stand out, them being of high economical interest for sport fishing and Amazon's industry of ornamental fish. The present study describes the weight-length relationship (WLR), relative condition factor (Kn), red blood cell parameters, thrombocytes and leukocytes count of Cichla temensis Humboldt, 1821, farmed in central Amazon. Fish that underwent food training during fingerling culture received extruded ration containing 45% of crude protein during fattening, and had Kn with values from 0.925-1.199, which indicated good health condition during the culture. The equation obtained from the WLR was W =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culture; Freshwater fish; Hematology; Leukocytes. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100009 |
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| Registros recuperados: 17 | |
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