PARASITOLOGICALASSESSMENT AND HOST-PARASITE RELATIONSHIP IN FARMED CACHARA CATFISH FINGERLINGS (PSEUDOPLATYSTOMA RETICULATUM EIGENMANN & EIGENMANN 1889), MATO GROSSO DO SUL, BRAZIL

Authors

  • Santiago Benites de Pádua AquiVet Saúde Aquática, São José do Rio Preto, SP, Brazil.Aquaculture Center of São Paulo State University (CAUNESP), Jaboticabal, SP, Brazil. https://orcid.org/0000-0003-1978-7387
  • Gabriela Tomas Jerônimo AQUOS - Aquatic Organism Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), SC, Brazil.
  • Mácia Mayumi Ishikawa Embrapa Western Agriculture, Dourados, MS, Brazil. https://orcid.org/0000-0002-2638-3332
  • Marco Antonio de Andrade Belo College of Veterinary Medicine, Laboratory of Pharmacology and Clinical Pathology, Camilo Castelo Branco University (Unicastelo), Descalvado, SP, Brazil. https://orcid.org/0000-0001-7708-3340
  • Maurício Laterça Martins AQUOS - Aquatic Organism Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), SC, Brazil. https://orcid.org/0000-0001-5692-7591
  • Thais Pelisari Anhanguera Faculty, Dourados, MS, Brazil.
  • Rodrigo Yutaka Dichoff Kasai Piraí Piscicultura, Terenos, MS, Brazil. https://orcid.org/0000-0001-6528-1008
  • Juliana Rosa Carrijo-Mauad School of Biological and Environmental Sciences, Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil. S.B. Pádua Aquaculture Center of São Paulo State University (CAUNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, CEP: 14884-900, Jaboticabal, SP, Brazil. https://orcid.org/0000-0003-3901-1105

DOI:

https://doi.org/10.24039/rnh201481896

Keywords:

Fish parasites, histopathology, Ichthyophthirius multifiliis, Pseudoplatystoma reticulatum, Trichodina heterodentata.

Abstract

Farmed fingerlings of South American catfish are frequently exposed to several parasites, but little information is available for implementing health programs for control and prevention of parasitic diseases in the hatcheries. This study evaluated the parasitic fauna of cachara catfish fingerlings (Pseudoplatystoma reticulatum Eingenmann & Eigenmann, 1889) and the hostparasite relationship during the early stages of rearing. A total of 302 cachara fingerlings were used for parasitic diagnosis and histopathological analysis. Ichthyophthirius multifiliis and Trichodina heterodentata were diagnosed as the most prevalent parasites, followed by Cryptobia sp., Henneguya sp., Monogenea and Nematoda. There was a positive correlation between the size of the fish and the mean intensity of parasitism by I. multifiliis. Proliferation of mucus cells, club cells, multifocal area of degeneration, epithelial necrosis on the body surface, skin ulceration, fusion of secondary gill lamellae and inflammatory infiltration were observed in I. multifiliisinfected fish. Ciliated protozoans were the main etiological agents diagnosed, and the cachara (P. reticulatum) is a new host for T. heterodentata. In addition, ichthyophthiriasis induced severe tissue damage thus making the fingerlings susceptible to opportunistic infections.

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Published

2014-02-11

How to Cite

Benites de Pádua, S., Tomas Jerônimo, G., Mayumi Ishikawa, M., de Andrade Belo, M. A., Laterça Martins, M., Pelisari, T., Dichoff Kasai, R. Y., & Carrijo-Mauad, J. R. (2014). PARASITOLOGICALASSESSMENT AND HOST-PARASITE RELATIONSHIP IN FARMED CACHARA CATFISH FINGERLINGS (PSEUDOPLATYSTOMA RETICULATUM EIGENMANN & EIGENMANN 1889), MATO GROSSO DO SUL, BRAZIL. Neotropical Helminthology, 8(1), 37–45. https://doi.org/10.24039/rnh201481896

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Artículos Originales