Banca de DEFESA: FERNANDA CORREA ROCHA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FERNANDA CORREA ROCHA
DATE: 25/03/2025
TIME: 09:00
LOCAL: Online via GoogleMeet
TITLE:

Pathological findings and investigation of causes of death in black lion tamarins (Leontopithecus chrysopygus) kept under human care at the Primatology Center of Rio de Janeiro from 1979 to 2024

KEY WORDS:

Biodiversity conservation, conservation medicine, neotropical primates, callitrichids, veterinary pathology, histopathology, diagnosis.

PAGES: 82
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Patologia Animal
SPECIALTY: Anatomia Patologia Animal
SUMMARY:

Black lion tamarins (Leontopithecus chrysopygus Mikan, 1823) are neotropical primates endemic to the Atlantic Forest in the state of São Paulo and are among the most endangered species in the world. The destruction of its habitat mainly drives the population decline of this species, and little information is available on the causes of mortality of L. chrysopygus. Between 1979 and 2024, 77 necropsies were carried out on black lion tamarins. According to the clinical history, necropsy and histopathological examination, the causes of death were identified in 42.8% (33/77) of the cases. The main systems affected were the digestive system, followed by the respiratory and urinary systems. The most frequent microscopic findings related to the causes of death included pneumonia (10/33), enteritis (9/33), nephritis (5/33) and hepatitis (4/33). The diagnosed cases were classified as infectious, with parasitic (27.2%; 9/33), bacterial (12,1%; 4/33) and viral (3%; 1/33) origins, and non-infectious, including traumatic (12.1%; 4/33) and neoplastic (3%; 1/33) causes. In addition, the inflammatory category with no known etiologic agent was identified, present in 27,2% (9/33) of cases, and renal disorders in 15.1% (5/33). Recording mortality and microscopic findings in managed populations is essential for understanding and supporting the conservation of these species. This knowledge contributes to improving management, care strategies, and is fundamental for public health and the environment.

COMMITTEE MEMBERS:
Presidente - 3701718 - DANIEL GUIMARAES UBIALI
Interno - 2318733 - DANIEL DE ALMEIDA BALTHAZAR
Externo à Instituição - ALCIDES PISSINATTI - CPRJ
Externa à Instituição - LUCIANA SONNE