<abstract xmlns="http://www.w3.org/1999/xhtml"><p><bold>Introduction:</bold> Canine roundworm <italic>T. canis</italic> and <italic>T. leonina</italic> infections were investigated in experimentally infected farm mink (<italic>Neovison vison</italic>) to describe the pattern of pathological lesions in this paratenic host. <bold>Material and Methods:</bold> Infections in mink developed following ingestion of embryonated eggs of either parasite or mice tissue infected with both parasite species. <bold>Results:</bold> Comparative analysis of haematoxylin- and eosin-stained slides showed essential differences among the experimental groups. The lesions observed included eosinophil and mononuclear inflammatory infiltrates of the intestinal wall and local lymph nodes, inflammation and haemorrhages in liver tissues, and interstitial inflammation and mineralisation of the kidneys and lungs. Larvae migrating through the minks’ bodies also caused particularly salient enlargement of lymphoid follicles in the spleen and inflammatory infiltrates of mononuclear cells in skeletal and heart muscles. <bold>Conclusions:</bold> It is assumed that histopathological lesions appeared as a local and general host response to invasive L3 <italic>T. canis</italic> and <italic>T. leonina</italic> larvae migrating through the tissues of infected farm mink. Interestingly, mink infected with embryonated eggs had more pronounced lesions than animals infected with tissue larvae. Detailed histopathological examinations of parenchymal organs and striated muscles revealed lesions resembling those observed in other paratenic host species due to toxocarosis.</p></abstract>

Introduction: Canine roundworm T. canis and T. leonina infections were investigated in experimentally infected farm mink (Neovison vison) to describe the pattern of pathological lesions in this paratenic host. Material and Methods: Infections in mink developed following ingestion of embryonated eggs of either parasite or mice tissue infected with both parasite species. Results: Comparative analysis of haematoxylin- and eosin-stained slides showed essential differences among the experimental groups. The lesions observed included eosinophil and mononuclear inflammatory infiltrates of the intestinal wall and local lymph nodes, inflammation and haemorrhages in liver tissues, and interstitial inflammation and mineralisation of the kidneys and lungs. Larvae migrating through the minks’ bodies also caused particularly salient enlargement of lymphoid follicles in the spleen and inflammatory infiltrates of mononuclear cells in skeletal and heart muscles. Conclusions: It is assumed that histopathological lesions appeared as a local and general host response to invasive L3 T. canis and T. leonina larvae migrating through the tissues of infected farm mink. Interestingly, mink infected with embryonated eggs had more pronounced lesions than animals infected with tissue larvae. Detailed histopathological examinations of parenchymal organs and striated muscles revealed lesions resembling those observed in other paratenic host species due to toxocarosis.

Histopathological lesions caused by experimental <italic>Toxocara canis</italic> and <italic>Toxascaris leonina</italic> infections in farm mink (<italic>Neovison vison</italic>)

Division of Parasitology and Invasiology, Department of Pre-Clinical Sciences, Faculty of Veterinary Medicine

Division of Pathology in Exotic, Laboratory, Non-domesticated Animals and Fish

Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine

Department of Large Animals Diseases with Clinic, Faculty of Veterinary Medicine

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Histopathological lesions caused by experimental  and  infections in farm mink ()

Introduction: Canine roundworm T. canis and T. leonina infections were investigated in experimentally infected farm mink (Neovison vison) to describe the...

Histopathological lesions caused by experimental Toxocara canis and Toxascaris leonina infections in farm mink (Neovison vison)

Published Online: Jun 20, 2019

Page range: 205 - 214

Received: Oct 12, 2018

Accepted: Apr 29, 2019

DOI: https://doi.org/10.2478/jvetres-2019-0034

Keywords
farm mink (), histopathological lesions, toxocarosis

© 2019 Maciej Klockiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Histopathological lesions caused by experimental Toxocara canis and Toxascaris leonina infections in farm mink (Neovison vison)

Published Online: Jun 20, 2019

Page range: 205 - 214

Received: Oct 12, 2018

Accepted: Apr 29, 2019

DOI: https://doi.org/10.2478/jvetres-2019-0034

Keywordsfarm mink (), histopathological lesions, toxocarosis

© 2019 Maciej Klockiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
farm mink (), histopathological lesions, toxocarosis