Comparative pathology of Neotropical deer: morphological and immunohistochemical evaluation

Author(s)

Pedro Enrique Navas Suarez

• Document type: Master's Dissertation
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD)
• Defense date: 2017-01-30

Examining board members

José Luiz Catão Dias; Josué Díaz Delgado; José Maurício Barbanti Duarte

• Advisor: José Luiz Catão Dias

Abstract

Neotropical deer have important functions for the sustainability and health of their ecosystem. The investigation of pathological processes and the respective etiologic agents is a critical part of the conservation programs involving these species. In addition, wild animals and in particular deer, play an important role in the transmission and spread of infectious agents, some of them relevant to human health, companion animals and livestock health. The present study describes gross and histological lesions of brown brocket deer BBD (Mazama gouazoubira) and marsh deer MD (Blastocerus dichotomus) from São Paulo state (Brazil), collected during a 21-year period (1995-2015). Major causes of death in MD were respiratory (53.3% 40/75), alimentary (4.0%; 3/75), nutritional (4.0%; 3/75), trauma (4.0%; 3/75) and euthanasia (4.0%; 3/75). In BBD, the main causes of death were respiratory (25.2% 33/131), euthanasia (12.2%; 16/131) and trauma (9.2%; 12/131). This study shows the importance of respiratory disturbances in these two species of South American deer. In this work, despite no etiologic agents were identified, histopathological findings suggest the presence of infectious etiologies including bacterial, viral and fungal. We have described characterized and evaluated pathological processes in function with biological and epidemiological aspects. (AU)

• FAPESP's process: 15/04231-2 - Comparative pathology of neotropical cervids: morphological, immunohistochemical and molecular evaluation
• Grantee: Pedro Enrique Navas Suárez
• Support Opportunities: Scholarships in Brazil - Master