Hematological analysis and relative condition factor in naturally parasitized Nile tilapia

ABSTRACT This study aimed to evaluate the hematological profile and relative condition factor of naturally parasitized Nile tilapia from 12 fish farms in southern Brazil. A total of 240 fish were collected from four regions of the state of Santa Catarina. They were anesthetized, and the blood was co...

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Autores principales:	Steckert,Lilian Dordete, Furtado,William Eduardo, Jerônimo,Gabriela Tomas, Tancredo,Karen Roberta, Hashimoto,Gabriela Sayuri de Oliveira, Pereira,Scheila Anelise, Martins,Maurício Laterça
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2019
Materias:	Oreochromis niloticus Monogenea Trichodina sp. Ichthyophthirius multifiliis monocytosis thrombocytopenia
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300502
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spelling	oai:scielo:S0718-560X20190003005022019-08-09Hematological analysis and relative condition factor in naturally parasitized Nile tilapiaSteckert,Lilian DordeteFurtado,William EduardoJerônimo,Gabriela TomasTancredo,Karen RobertaHashimoto,Gabriela Sayuri de OliveiraPereira,Scheila AneliseMartins,Maurício Laterça Oreochromis niloticus Monogenea Trichodina sp. Ichthyophthirius multifiliis monocytosis thrombocytopenia ABSTRACT This study aimed to evaluate the hematological profile and relative condition factor of naturally parasitized Nile tilapia from 12 fish farms in southern Brazil. A total of 240 fish were collected from four regions of the state of Santa Catarina. They were anesthetized, and the blood was collected by puncturing the caudal vein. Subsequently, the fish were necropsied for parasitological analysis. The results were compared with the Kruskal-Wallis test, and the correlations were verified with the Spearman test (P ˂ 0.05). The parasitological analysis revealed high infestations by Ichthyophthirius multifiliis on the fish gills of the south and west regions. The presence of Trichodina magna and Trichodina compacta was observed in low intensity on the body surface of fish from all facilities. Trichodina spp. was found in high intensity parasitizing the fish gills of northern, Itajaí valley and western regions, nonetheless, in those regions, the presence of Monogenea, Cichlidogyrus sclerosus, and Cichlidogyrus halli, on fish gills was observed. The hematological profile presented altered parameters, featuring monocytosis and thrombocytopenia, possibly associated with high parasitic intensities. The observed correlations suggest that neutrophils and monocytes are directly involved in an organic defense against parasites. Monocytes are mainly targeted in the defense against I. multifiliis.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.47 n.3 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300502en10.3856/vol47-issue3-fulltext-12
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Oreochromis niloticus Monogenea Trichodina sp. Ichthyophthirius multifiliis monocytosis thrombocytopenia
spellingShingle	Oreochromis niloticus Monogenea Trichodina sp. Ichthyophthirius multifiliis monocytosis thrombocytopenia Steckert,Lilian Dordete Furtado,William Eduardo Jerônimo,Gabriela Tomas Tancredo,Karen Roberta Hashimoto,Gabriela Sayuri de Oliveira Pereira,Scheila Anelise Martins,Maurício Laterça Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
description	ABSTRACT This study aimed to evaluate the hematological profile and relative condition factor of naturally parasitized Nile tilapia from 12 fish farms in southern Brazil. A total of 240 fish were collected from four regions of the state of Santa Catarina. They were anesthetized, and the blood was collected by puncturing the caudal vein. Subsequently, the fish were necropsied for parasitological analysis. The results were compared with the Kruskal-Wallis test, and the correlations were verified with the Spearman test (P ˂ 0.05). The parasitological analysis revealed high infestations by Ichthyophthirius multifiliis on the fish gills of the south and west regions. The presence of Trichodina magna and Trichodina compacta was observed in low intensity on the body surface of fish from all facilities. Trichodina spp. was found in high intensity parasitizing the fish gills of northern, Itajaí valley and western regions, nonetheless, in those regions, the presence of Monogenea, Cichlidogyrus sclerosus, and Cichlidogyrus halli, on fish gills was observed. The hematological profile presented altered parameters, featuring monocytosis and thrombocytopenia, possibly associated with high parasitic intensities. The observed correlations suggest that neutrophils and monocytes are directly involved in an organic defense against parasites. Monocytes are mainly targeted in the defense against I. multifiliis.
author	Steckert,Lilian Dordete Furtado,William Eduardo Jerônimo,Gabriela Tomas Tancredo,Karen Roberta Hashimoto,Gabriela Sayuri de Oliveira Pereira,Scheila Anelise Martins,Maurício Laterça
author_facet	Steckert,Lilian Dordete Furtado,William Eduardo Jerônimo,Gabriela Tomas Tancredo,Karen Roberta Hashimoto,Gabriela Sayuri de Oliveira Pereira,Scheila Anelise Martins,Maurício Laterça
author_sort	Steckert,Lilian Dordete
title	Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
title_short	Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
title_full	Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
title_fullStr	Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
title_full_unstemmed	Hematological analysis and relative condition factor in naturally parasitized Nile tilapia
title_sort	hematological analysis and relative condition factor in naturally parasitized nile tilapia
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000300502
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_version_	1714205222850527232

Hematological analysis and relative condition factor in naturally parasitized Nile tilapia

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