A retrospective pathology study of two Neotropical deer species (1995-2015), Brazil: Marsh deer (Blastocerus dichotomus) and brown brocket deer (Mamma gouazoubira)

Author(s):Show less -

Navas-Suarez, Pedro Enrique ^[1] ; Diaz-Delgado, Josue ^[1] ; Matushima, Eliana Reiko ^[1] ; Favero, Cintia Maria ^[1] ; Sanchez Sarmiento, Angelica Maria ^[1] ; Sacristan, Carlos ^[1] ; Ewbank, Ana Carolina ^[1] ; Joppert, Adriana Marques ^[2] ; Barbanti Duarte, Jose Mauricio ^[3] ; dos Santos-Cirqueira, Cinthya ^[4] ; Cogliati, Bruno ^[5] ; Mesquite, Leonardo ^[6] ; Maiorke, Paulo Cesar ^[6] ; Catao-Dias, Jose Luiz ^[1]

Affiliation

^[1] Univ Sao Paulo, Lab Wildlife Comparat Pathol LAPCOM, Sch Vet Med & Anim Sci, Sao Paulo - Brazil

^[2] Div Tecn Med Vet & Manejo Fauna Silvestre DEPAVE, Sao Paulo - Brazil

^[3] Sao Paulo State Univ, Dept Anim Sci, Deer Res & Conservat Ctr NUPECCE, Sao Paulo - Brazil

^[4] Ctr Patol, Inst Adolfo Lutz IAL, Sao Paulo - Brazil

^[5] Univ Sao Paulo, Sch Vet Med & Anim Sci, Lab Morphol & Mol Pathol, Sao Paulo - Brazil

^[6] Univ Sao Paulo, Sch Vet Med & Anim Sci, Lab Anim Models, Sao Paulo - Brazil

• Document type: Journal article
• Source: PLoS One; v. 13, n. 6 JUN 7 2018.
• Web of Science Citations: 1

Abstract

This retrospective study describes the biological and epidemiological aspects, gross and microscopical findings, and most likely causes of death (CD) in two species of Neotropical deer in Brazil. The animals were collected between 1995 and 2015 and represented 75 marsh deer (MD) and 136 brown brocket deer (BBD). Summarized, pneumonia was diagnosed microscopically in 48 MD and 52 BBD; 76 deer suffered trauma, involving dog attack (14 BBD) and vehicle-collision (14 BBD). Pulmonary edema (50 MD; 55 BBD) and congestion (57 MD; 78 BBD) were the most common findings for both species. Additionally, we diagnosed ruminal and myocardial mycosis in MD and BBD, respectively; ovarian dysgerminoma and pancreatic trematodiasis in BBD; and lesions suggestive of malignant catarrhal fever and orbiviral hemorrhagic disease in both species. The main CD in MD was: respiratory (41/75), alimentary, nutritional, trauma and euthanasia (3/75 each). Correspondingly, in BBD were: trauma (34/131), respiratory (30/131) and euthanasia (9/131). Respiratory disease was often defined by pulmonary edema and pneumonia. We provide evidence that respiratory disease, mainly pneumonia, is a critical pathological process in these Neotropical deer species. Although no etiological agents were identified, there is evidence of bacterial and viral involvement. Our results show trauma, mainly anthropogenic, as a common ailment in BBD. We propose to prioritize respiratory disease in future research focused on South American deer health aspects. We believe anthropogenic trauma may be a primary threat for populations of BBD. (AU)

• FAPESP's process: 17/02223-8 - Comparative immunopathology of cetacean morbillivirus infection: histologic, immunohistochemical, and molecular studies
• Grantee: Josué Díaz Delgado
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• 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