Estudo do cortisol sérico e outros biomarcadores de bem-estar animal, em equinos utilizados num ensaio de toureio
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2024
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A avaliação do bem-estar animal em toda e qualquer modalidade equestre tem vindo a ganhar cada vez mais importância. Dada a ausência de estudos sobre o toureio a cavalo, pretendeu-se, com o presente trabalho, estudar as respostas fisiológicas relacionadas com a performance e o bem-estar animal num ensaio realizado com cinco cavalos Puro Sangue Lusitano, de toureio. Para tal, foram avaliados biomarcadores (o cortisol, a frequência cardíaca, a frequência respiratória, o lactato e a temperatura corporal) em quatro tempos distintos (antes do exercício, imediatamente após o término do exercício, com 30 minutos de recuperação do exercício e com 240 minutos de recuperação do exercício). Comprovou-se que o stress nem sempre é negativo, sendo, em parte, necessário para a mobilização de energia exigida pela atividade física. O cortisol (principal biomarcador de stress), neste estudo, não sofreu alterações significativas em função do teste de simulação de toureio realizado. Tal facto, aliado à rápida recuperação da frequência cardíaca e ao baixo valor de frequência cardíaca média, leva-nos a concluir que os animais se encontravam fisiologicamente adaptados ao esforço desta modalidade equestre. Comprova-se, ainda, que o ensaio realizado não comprometeu o bem-estar animal dos cavalos trabalhados. Palavras-chave: Bem-estar, Biomarcadores, Cavalo de Toureio, Cortisol, Stress.
The assessment of animal welfare in all equestrian disciplines has been gaining increasing importance. Given the absence of studies on bullfighting on horseback, the aim of this study was to study the physiological responses related to performance and animal welfare in a trial conducted with five Lusitano Purebred horses used in bullfighting. For this purpose, biomarkers (cortisol, heart rate, respiratory rate, lactate, and body temperature) were evaluated at four different times (before exercise, immediately after the end of exercise, after 30 minutes of exercise recovery and after 240 minutes of exercise recovery). It was proven that stress is not always negative, being partly necessary for the mobilization of energy required by physical activity. Cortisol (the main stress biomarker) in this study did not undergo significant changes due to the bullfighting simulation test. This, combined with the rapid recovery of heart rate and the low average heart rate value, allows us to conclude that the animals were physiologically adapted to the effort of this equestrian discipline. It is also confirmed that the trial conducted did not compromise the animal welfare of the horses. Keywords: Welfare, Biomarkers, Bullfighting Horse, Cortisol, Stress.
The assessment of animal welfare in all equestrian disciplines has been gaining increasing importance. Given the absence of studies on bullfighting on horseback, the aim of this study was to study the physiological responses related to performance and animal welfare in a trial conducted with five Lusitano Purebred horses used in bullfighting. For this purpose, biomarkers (cortisol, heart rate, respiratory rate, lactate, and body temperature) were evaluated at four different times (before exercise, immediately after the end of exercise, after 30 minutes of exercise recovery and after 240 minutes of exercise recovery). It was proven that stress is not always negative, being partly necessary for the mobilization of energy required by physical activity. Cortisol (the main stress biomarker) in this study did not undergo significant changes due to the bullfighting simulation test. This, combined with the rapid recovery of heart rate and the low average heart rate value, allows us to conclude that the animals were physiologically adapted to the effort of this equestrian discipline. It is also confirmed that the trial conducted did not compromise the animal welfare of the horses. Keywords: Welfare, Biomarkers, Bullfighting Horse, Cortisol, Stress.
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VETERINARY MEDICINE, ANIMAL WELFARE, BIOMARKERS, EQUIDS, HORSES, HYDROCORTISONE, MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, MEDICINA VETERINÁRIA, VETERINÁRIA, BEM-ESTAR, BIOMARCADORES, EQUÍDEOS, CAVALOS, HIDROCORTISONA, STRESS, Mestrado Integrado em Medicina Veterinária