Banca de DEFESA: BRUNA COSTA DA GAMA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : BRUNA COSTA DA GAMA
DATE: 15/08/2023
TIME: 09:00
LOCAL: Plataforma Online (Google Meet/Jitsi meet)
TITLE:

Parasitic diseases of animal and public health interest in horses in the State of Alagoas, Northeast Brazil

KEY WORDS:

horses, epidemiology, unique health, zoonoses

PAGES: 72
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

The aim of this study was to determine the prevalence of pathogens of animal health and single health interest in horses in the State of Alagoas, Northeast, Brazil. Feces samples (10g) were collected through spontaneous defecation or directly from the rectal ampulla of the horses, packed in sterile collection vials and submitted to the Gordon & Whitlock Technique (Count of Eggs/Ooocysts per Gram of Feces - OOPG) to search for parasitic structures. Blood samples (7ml) were obtained through jugular venipuncture and placed in tubes without anticoagulant and centrifuged at 2,200 rpm for 10 minutes to obtain serum. The sera were aliquoted into microtubes and frozen until the investigation of IgG class antibodies against Toxoplasma gondii, Leishmania spp. and Neospora caninum by means of the Indirect Immunofluorescence Assay (IFA). Ticks were collected from horses using anatomical tweezers and preserved in tubes containing 70o ethanol until microscopic identification using a specific taxonomic key. Regarding the OOPG, 364 samples were analyzed, and a prevalence of 91.75% was detected for some type of parasite. The group of helminths most commonly found among the animals were strongyles (51.79%), followed by Strongyloides westeri (37.72%), Oxyuris equi (4.19%), Anoplocephala spp. (1.79%) and Parascaris equorum (1.49%). Age, type of rearing, purpose of the animal and source of water for desendation were considered risk factors for helminth parasitic infections (p<0.05). In the IFA, 376 serum samples were analyzed, with a prevalence of 44.94% for at least one of the three protozoa investigated. The prevalence per pathogen was 17.33% for T. gondii, 16.22% for N. caninum and 11.44% for Leishmania spp. The form of rearing was considered a risk factor associated with N. caninum infection (p < 0.05). A total of 2,239 ticks were found on 308 animals, of which 2,215 were Dermacentor nitens, 19 Amblyomma sculptum and four Rhipicephalus microplus. According to the authors, this is the first report of D. nitens and A. sculptum ticks in horses in the state of Alagoas. The epidemiological data obtained by this study demonstrate the importance of horses as possible sentinel animals for understanding the epidemiology of diseases and vectors of unique health interest.

BANKING MEMBERS:
Externo(a) à Instituição - MARCELO BAHIA LABRUNA - USP
Interno(a) - 1640234 - DIOGO RIBEIRO CAMARA
Presidente - 1393994 - JONATAS CAMPOS DE ALMEIDA