Leukocyte and thrombocyte reference values for channel catfish (<i>Ictalurus punctatus</i> Raf), with an assessment of morphologic, cytochemical, and ultrastructural features

Tavares‐Dias, Marcos; Moraes, Flávio Ruas de

doi:10.1111/j.1939-165x.2007.tb00181.x

Cited by 109 publications

(82 citation statements)

References 17 publications

(48 reference statements)

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“…Initially, as the parasite intensity was less, differences in the haematological parameters, serum biochemistry and other immunological parameters were not found to vary much among the different groups of fish. Similar findings have been reported in four Brazilian teleost fish species with parasitic infection (Tavares-Dias et al, 2007), Mugil platanum with parasitic monogenean or copepod (RanzaniPalva et al, 1997); in Piaractus mesopotamicus with Argulus sp. (Tavares-Dias et al, 1999) and Oreochromis niloticus infected with Trichodina sp.…”

Section: Resultssupporting

confidence: 74%

Effect of short term infection of Paradactylogyrus catlaius on selected haematological and non-specific immune parameters in Catla catla (Hamilton, 1822)

Rana¹,

Das²

2016

Indian J. Fish.

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A short term (20 days) cohabitation infection study of the gill fluke Paradactylogyrus catlaius infecting Catla catla was conducted to investigate on the mode, intensity and effect of infection on selected haematological, immunological and serum biochemical parameters in the infected fish. The results revealed that the increase in the number of parasites is rampant and increased to 161±23 parasites per gill lamella in just 20 days post-challenge. Further, significant decrease (p≤0.05) in haemoglobin (Hb), total erythrocyte count (TEC), lysozyme activity, bactericidal activity, total protein and albumin content was noticed whereas a significant increase in total leucocyte count (TLC) was recorded. Globulin content and superoxide anion production increased significantly initially and then decreased (p≤0.05). From this study, it was found that P. catlaius infection causes no mortality in catla till the 20 th day of challenge but the infection can spread to the whole population of catla in short time. Further, it was also observed that the infection can adversely affect the physiological and immunological status of the infected fish. Therefore, appropriate management and control strategies need to be formulated to prevent its spread and to avoid production loss.

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Section: Resultssupporting

confidence: 74%

Effect of short term infection of Paradactylogyrus catlaius on selected haematological and non-specific immune parameters in Catla catla (Hamilton, 1822)

Rana¹,

Das²

2016

Indian J. Fish.

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“…However, for farmed I. punctatus Kn was higher than 1.00 (Tavares-Dias & Moraes, 2007). Therefore, this indicates good body condition of C. temensis in culture, making good use of the artificial feeding source in the fish farming.…”

Section: Discussionmentioning

confidence: 91%

“…Therefore, red blood cell parameters are useful measures of respiratory adaptation that could be used for fish living in different environments. Piscine blood leukocytes are the major cell components involved in immune response (Tavares-Dias & Moraes, 2007;Tavares-Dias et al, 2008). In general, among the leukocytes found are lymphocytes, neutrophils, monocytes, eosinophils, basophils and PAS-positive granular leukocytes (Tavares-Dias & Moraes, 2004), depending on species.…”

Section: Discussionmentioning

confidence: 99%

Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae) in central Amazon

et al. 2011

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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 = 0.0073Lt 3.1435 , indicating an isometric growth, which is the desirable for fish of fish farm. Red blood cell counts, total thrombocyte and leukocyte counts, hematocrit, hemoglobin concentration, mean corpuscular volume (MCV), concentration of mean corpuscular hemoglobin (MCHC), lymphocytes, monocytes and neutrophils had intra-specific variation. A significant (p<0.001) positive correlation of the red blood cells number with the hemoglobin concentration and hematocrit was found. These are the first sets of blood parameters for C. temensis and could be used as reference for comparison in further studies to evaluate the health status of this fish in different environments, because assessment of these parameters may be used as quick tool for diagnosing diseases, stress and malnutrition.A criação de peixes carnívoros nativos vem recebendo grande atenção devido ao promissor uso na aquicultura. Entre estes peixes destacam-se os tucunarés do gênero Cichla, de grande interesse para a pesca esportiva e a indústria de peixes ornamentais da Amazônia. O presente estudo descreve a relação peso-comprimento, fator de condição relativo (Kn) e parâmetros sanguíneos do tucunaré Cichla temensis Humboldt, 1821 cultivado na Amazônia central. Os peixes submetidos a treinamento alimentar na alevinagem receberam ração extrusada contendo 45% de proteína bruta na engorda e tiveram Kn variando de 0,925-1,199, indicando boas condições de higidez no cultivo. A equação obtida da relação peso-comprimento foi P = 0,0073.Ct 3,1435 , indicando crescimento do tipo isométrico, que é o mais desejável para peixes em uma piscicultura. O número de eritrócitos, trombócitos e leucócitos totais, hematócrito, concentração de hemoglobina, volume corpuscular médio (VCM), concentração da hemoglobina corpuscular média (CHCM), linfócitos, monócitos e neutrófilos mostrou variação intra-específica. Foi observada correlação positiva significativa (p<0,001) do número de eritrócitos totais com a concentração de hemoglobina e o hematócrito. Estes foram os primeiros resultados sobre parâmetros sanguíneos de C. temensis e poderão ser usados como referência para comparação em estudos futuros para avaliar o estado de saúde deste peixe em diferentes ambientes, pois a medida destes parâmetros pode ser usada como ferramen...

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“…Nowadays, thrombocyte has been found to be an important cell involved in fish defenses (Matushima and Mariano, 1996;Martins et al, 2006;Tavares-Dias and Moraes, 2007;Bozzo et al, 2007). Besides the high number of lymphocytes, the injection of Enterococcus was found to incite more production of thrombocytes in the circulating blood.…”

Section: Discussionmentioning

confidence: 99%

Haematological changes in Nile tilapia experimentally infected with Enterococcus sp.

et al. 2008

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Leukocyte and thrombocyte reference values for channel catfish (Ictalurus punctatus Raf), with an assessment of morphologic, cytochemical, and ultrastructural features

Cited by 109 publications

References 17 publications

Effect of short term infection of Paradactylogyrus catlaius on selected haematological and non-specific immune parameters in Catla catla (Hamilton, 1822)

Effect of short term infection of Paradactylogyrus catlaius on selected haematological and non-specific immune parameters in Catla catla (Hamilton, 1822)

Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae) in central Amazon

Haematological changes in Nile tilapia experimentally infected with Enterococcus sp.

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