Banca de DEFESA: DENISE CERQUEIRA DE SOUSA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : DENISE CERQUEIRA DE SOUSA
DATE: 28/06/2024
TIME: 14:00
LOCAL: Videoconfência pelo Google meet
TITLE:

QUANTITATIVE COMPUTERIZED TOMOGRAPHY OF LAYING HENS IN EXTENDED LAYING CYCLE

KEY WORDS:

poultry farming, hepatic lipidosis, bone mineral densitometry, CTQ, osteoporosis

PAGES: 38
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Clínica e Cirurgia Animal
SPECIALTY: Radiologia de Animais
SUMMARY:

The aim of this study was to obtain bone mineral densitometry and liver radiodensity values from laying hens in a prolonged laying cycle. The high production rates of laying hens have increased the physiological performance requirements of some organs, especially bones and liver. This intense activity can result in pathologies, the most relevant being osteoporosis and hepatic lipidosis, compromising the well-being of these animals. Quantitative computed tomography is one of the diagnostic methods used for bone and liver evaluation. This technique allows precise definition of the radiodensity of these organs, contributing to the diagnosis and monitoring of lesions. The first study aimed to obtain bone mineral density measurements from hens. Tomographic examinations were performed on 10 animals and after image acquisition, the right and left tibias were analyzed by means of multiplanar reconstruction and cross-sections. The mean value of 847.19 ± 100.47 mg/cm3 was obtained in the bone mineral density of the cortical bone of the tibias. The second study aimed to obtain measurements of hepatic radiodensity in chickens through tomographic examinations. The images were analyzed using multiplanar reconstructions and cross-sections, and the regions of interest (ROI) were measured in the right and left hepatic lobes. The mean hepatic radiodensity value was 45.41 ± 8.85 HU. These data may contribute to the diagnosis of lesions in the skeletal system and the detection of liver lesions, providing information for the adoption of corrective and preventive management measures, resulting in improvements in animal welfare and in the development of the poultry sector.

COMMITTEE MEMBERS:
Presidente - FABIANO SELLOS COSTA
Externa à Instituição - GESSICA GISELLE ALMEIDA SILVA ARAUJO - UFRPE
Externa à Instituição - LORENA ADAO VESCOVI SELLOS COSTA - UFRPE
Externo à Instituição - MANOEL LOPES DA SILVA FILHO - UFPI
Externa à Instituição - THAIZA HELENA TAVARES FERNANDES