RESUMO
This study aimed to evaluate follicular dynamics and pregnancy rates in Nellore heifers submitted to fixed-time artificial insemination (FTAI) protocols associated with equine chorionic gonadotrophin (eCG) or follicle stimulating hormone (FSH). Nellore heifers (n = 259) were used, divided into two studies. Experiment I evaluated the ovarian follicular dynamics in 64 Nellore heifers submitted to different FTAI protocols (n = 32/group) using either FSH or eCG. In Experiment II, the pregnancy rate was evaluated in 195 heifers submitted to FTAI protocols and divided into two groups: FSH (n = 97) and eCG (n = 98). In Experiment I, the ultrasound examination showed that the maximum diameter of the dominant and preovulatory follicles and the ovulation time were similar between the FSH and eCG groups (p > 0.05). However, the ovulation rate was higher in the eCG group when compared to FSH (p = 0.014). In Experiment II, females that received eCG presented a higher pregnancy rate (58.1%) when compared to FSH (40.2%) (p = 0.012). The use of eCG in the FTAI protocol in Nellore heifers promoted a higher ovulation rate and increased pregnancy rate and may be the most suitable alternative to increase conception rates in animals that are raised in an extensive system under tropical conditions in the Amazon.
RESUMO
O movimento humano, e suas disfunções, constituem o principal objeto de estudos da fisioterapia. Nesse sentido, compreender e analisar de forma objetiva e precisa a complexidade dos gestos motores do ser humano, trata-se de uma questão essencial que demanda o desenvolvimento de ferramentas que possibilitem alcançar um diagnóstico funcional preciso. Objetivou-se com o presente trabalho verificar se a mudança de posição da altura da câmera fotográfica promove variação do resultado da análise de amplitude articular do cotovelo, por meio da fotogrametria computadorizada e se altura influência na análise fotogramétrica. Foram selecionados entre os acadêmicos do 4° e 5° ano do curso de Fisioterapia da UEPA, 6 examinadores. Esses examinadores se dedicaram a obter os valores angulares de ADM da articulação do cotovelo. De vários ângulos, apenas um ângulo foi levado em consideração para a análise estatística, chamado ângulo-chave, posteriormente os dados foram analisados no programa BioEstat 5.0 e SPSS 18. Através dos resultados encontrados, observou-se distribuição normal para os dados obtidos em todas as diferentes alturas da câmera fotográfica, exceto para a altura de 50 cm. Notouse também, o mesmo padrão de variância em todas as alturas testadas, demonstrando variação não significante entre os resultados da amostra. Conclui-se, que as variações na altura da câmera fotográfica, não foram capazes de alterar significativamente o resultado final da análise por fotogrametria computadorizada. Identificou-se que a altura de 50 cm influencia no resultado final, pois a mesma demonstrou nesta investigação um risco de apresentar resultados inconsistentes estatisticamente (p=0.01). Desse modo, não se recomenda a utilização dessa altura de câmera fotográfica, evitando erros na interpretação das análises fotogramétricas....(AU)
Human movement, and its dysfunctions, are the main object of physical therapy studies. In this sense, to understand and analyze in an objective and precise way the complexity of the human motor gestures, it is an essential question that demands the development of tools that allow to reach a precise functional diagnosis. The objective of this study was to verify if the change of position of the photographic camera height promotes variation of the results of the joint amplitude analysis of the elbow, through computerized photogrammetry and if height influence in the photogrammetric analysis. Six examiners were selected among the academics of the 4th and 5th year of the UEPA Physiotherapy course. These examiners were dedicated to obtaining the angular values of ADM from the elbow joint. From several angles, only one angle was taken into account for the statistical analysis, called the key angle, later the data were analyzed in the program BioEstat 5.0 and SPSS 18. Through the results found, it was observed a normal distribution for the data obtained in all the different heights of the camera, except for the height of 50cm. The same pattern of variance was also observed in all the tested heights, demonstrating nonsignificant variation among the results of the sample. It was concluded that the variations in the height of the photographic camera were not able to significantly alter the final result of the analysis by computerized photogrammetry. It was identified that the height of 50cm influenced the final result, since it showed in this investigation a risk of presenting inconsistent results statistically (p = 0.01). Therefore, the use of this camera height is not recommended, avoiding errors in the interpretation of photogrammetric analyzes....(AU)