Banca de DEFESA: ARTHUR CARLOS DA TRINDADE ALVES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ARTHUR CARLOS DA TRINDADE ALVES
DATE: 31/03/2025
TIME: 09:30
LOCAL: Biblioteca Central da UFRRJ & Online via GoogleMeet
TITLE:

Lentivirosis in a goat flock from an urban area of Rio de Janeiro, Brazil

KEY WORDS:

Veterinary pathology, small ruminants, Lentivirus, arthritis, mastitis, interstitial pneumonia.

PAGES: 58
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Patologia Animal
SPECIALTY: Anatomia Patologia Animal
SUMMARY:

Small ruminant lentiviruses (SRLVs) are of global distribution and economic importance to sheep and goat producers. This study investigated the clinical pathology and etiology of lentivirus infection in a goat herd in an urban area of Rio de Janeiro, Brazil. Methodology: The 30-month study was conducted with 26 domestic goats with a history of SRLV infection. The goats were clinically evaluated through physical examination, radiographs, hematological and biochemical tests, necropsy and histopathology, and molecular and phylogenetic analyses. Results: The results discovered the Caprine Arthritis and Encephalitis Virus (CAEV) in 11 goats, with the detection of viral RNA in blood and tissue samples. The clinical signs varied from lameness and increased joint volume to mastitis and respiratory distress. Necropsy and histopathology of three goats revealed lesions typical of CAE infection. Viral sequencing similarly detected the B1 clade of a lentivirus with high equivalence between samples from different goats. Sequencing demonstrated that the virus had a nucleotide identity with CAEV strains reported in goats in Spain and the United States of America. Conclusion: We described clinical disease related to clade B1 CAEV infection in southeastern Brazil leading to economic losses. We reinforce the need for control measures to prevent the spread of small ruminant lentiviruses in Brazil.

COMMITTEE MEMBERS:
Interna - 3324429 - ANDRESA GUIMARAES
Interno - 2318733 - DANIEL DE ALMEIDA BALTHAZAR
Externo à Instituição - AXEL COLLING
Externo à Instituição - ANDRÉ FELIPE ANDRADE DOS SANTOS - UFRJ
Externo à Instituição - FERNANDO HENRIQUE FURLAN GOUVEIA - UFMT