Banca de DEFESA: MARCIA TORRES RAMOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MARCIA TORRES RAMOS
DATA : 15/04/2019
HORA: 14:00
LOCAL: Instituto de veterinária
TÍTULO:

BONE MATURITY AND RADIOGRAPHIC FINDINGS IN THE PURCHASE EXAMINATION OF BRAZILIAN THOROUGHBRED HORSES AND THEIR INFLUENCE ON ATHLETIC LONGEVITY AND PERFORMANCE

PALAVRAS-CHAVES:

purchase examination; bone maturity; athletic longevity

PÁGINAS: 67
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
SUBÁREA: Clínica e Cirurgia Animal
ESPECIALIDADE: Clínica Veterinária
RESUMO:

Locomotor conditions are the most common causes for discontinuing sports performance. Radiology is a noninvasive technique most used for the identification of bone diseases due to its portability and economic viability. The objective of this study was to investigate bone maturity and radiographic abnormalities in Thoroughbred horses between 18 and 24 months of age, raised and commercialized in Brazil, prior to the beginning of training, and to correlate bone maturity and radiographic abnormalities with longevity and athletic performance. It is believed that juvenile osteochondral conditions are prevalent radiographic findings in purchase examinations and that these, as well as bone immaturity at the beginning of training, may negatively influence the future athletic performance of horses. Radiographic images obtained through direct digital radiology between 2012 and 2015 were evaluated by two experienced veterinarians. In study 1, 286 radiographic images were obtained of from the carpal region of the left thoracic limb in the dorso-palmar position. The stage of the distal physeal ossification of the radio was investigated and classified in A, B or C. The reliability and degree of agreement between scores assigned by the evaluators will be tested by Kappa coefficient of agreement. The obtained results were submitted to regression analysis and adjusted to the linear and quadratic models. In study 2, 295 purchase radiographic evaluations of young horses were studied. The radiographic studies were classified in with or without radiographic findings, that than were localized by their anatomical site, as well as the radiographic projections in which they were detected. The animals will be divided into group 1 (G1), animals without radiographic changes and group 2 (G2), animals with radiographic findings. The animals of G2 are separated in patients with juvenile osteochondral syndrome and with other abnormalities. To each radiographic finding a severity score was assigned that summed will form a radiographic score of individual general severity. The reliability and degree of agreement between scores assigned by the evaluators will be tested by Kappa coefficient of agreement. To investigate the prevalence, classification and anatomical location will be performed statistical descriptive study of frequency and comparison by the chi-square test. The multivariate discriminant analysis technique will be used to evaluate the significance of the separation between G1 and G2. To investigate the importance of radiographic positions in the detection of lesions and severity scores by statistical study of frequency and comparison using the chi-square test. In the study 3 the information of the athletic performance of the 295 animals of the G1 and G2 were obtained as well as the athletic performance of another 295 animals, forming a control group, aiming at the comparison of the performance variables with those obtained in the G1 and G2. Correlation between the severity scores of the G2 radiographic changes and the athletic performance of the animals was performed. The obtained data was analyzed in the software SAS considering the level of statistical significance of 95%.

MEMBROS DA BANCA:
Externo à Instituição - ALINE EMERIM PINNA - UFF
Externo à Instituição - DANIEL AUGUSTO BARROSO LESSA - UFF
Interno - 387015 - FERNANDO QUEIROZ DE ALMEIDA
Presidente - 2181722 - MARCELO ABIDU FIGUEIREDO
Externo à Instituição - MARCO AURÉLIO PEREIRA SAMPAIO - UFF