PERFIL TERMORREGULATÓRIO DO CAVALO NORDESTINO EM UMA “PEGA DE BOI” NO MATO

Maria Luíza Coelho Cavalcanti; Neila Lidiany Ribeiro; Leopoldo Mayer De Freitas Neto; VIVIANE BARBOSA PEREIRA; Laíza Soliely Costa Gonçalves; Geovergue Rodrigues de Medeiros; Olímpia Lima Silva Filha

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Trabalho

Título do Trabalho

PERFIL TERMORREGULATÓRIO DO CAVALO NORDESTINO EM UMA “PEGA DE BOI” NO MATO

Autores

Maria Luíza Coelho Cavalcanti
Neila Lidiany Ribeiro
Leopoldo Mayer De Freitas Neto
VIVIANE BARBOSA PEREIRA
Laíza Soliely Costa Gonçalves
Geovergue Rodrigues de Medeiros
Olímpia Lima Silva Filha

Modalidade

Resumo

Área temática

Programas locais de seleção de raças

Data de Publicação

24/03/2025

País da Publicação

Brasil

Idioma da Publicação

Português

Página do Trabalho

https://www.even3.com.br/anais/crga2024_valenca/873750-perfil-termorregulatorio-do-cavalo-nordestino-em-uma-pega-de-boi-no-mato

ISBN

978-65-272-1260-7

Palavras-Chave

Keywords: Oxygen Consumption, Heat Stress, Comfort Index, Thermography.

Resumo

This sport demands a lot from the animals, which can lead to variations in physiological parameters. The temperature of the environment, relative humidity, solar radiation, and other climatological variables influence heart rate, respiratory rate, and surface temperature. In addition to these, other factors present at events, such as the hustle and bustle of the place, the sounds and noises caused by people and stereos, the visual and olfactory perception of horses in the competition environment, transport, the presence of horses that are strangers to their social group and the pressure applied by cowboys, can become negative stimuli and increase cortisol levels in animals. This research aimed to assess the thermal patterns and physiological responses of the Nordestino horse breed during a cattle hunting competition. This study was conducted according to the ethical principles of animal experimentation and under the approval of the Animal Ethics Committee of the National Institute of the Semiarid (protocol number 0002/2022), Brazil. Ten adults, castrated males with teeth classified as "full mouth," were assessed. Physiological measurements and thermography were carried out at two points, the first before cattle handling, i.e., before searching for the cattle in the Caatinga ecosystem, and the second just after the action had been completed. The cattle handling environment was evaluated in terms of air temperature, relative humidity, and black globe temperature, which were used to calculate the comfort index (CI) and the temperature and humidity index. The air temperature (P<.0001), relative humidity (P<.0001), black globe temperature (P=0.0260), comfort index (P=0.0010), and temperature and humidity index (P=0.0035) showed a significant difference between before and after cattle handling. The temperature range was 3.02 °C. As the air temperature increased, the RH decreased by 10.37%, which resulted in better comfort for the horses as the CI decreased by 4.91. The CI helps characterize whether or not the thermal environment during the monitoring period was stressful for the horses. If the CI < 130, the animal will be in thermal comfort, and the thermoregulatory system will not be activated, while the CI > 130 may indicate that the environment is thermally uncomfortable and heat dissipation may be impaired. According to the CI value, it can be seen that the thermoregulatory system was activated before and after cattle handling. From the thermal gradient (surface temperature-air temperature), the animal dissipated more heat after cattle handling than stored. It can be concluded that the animals are resistant to this type of sport and that their thermoregulatory mechanisms are effective.

Título do Evento: Conservando a biodiversidade animal na era da popularização científica: III Seminário da Rede de Recursos Genéticos Animais do Nordeste do Brasil e I Encontro da Pós-Graduação Internacional em Conservação de Recursos Genéticos Animais
Cidade do Evento: Valença
Título dos Anais do Evento: Anais do Conservando a Biodiversidade Animal na Era da Popularização Científica
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

CAVALCANTI, Maria Luíza Coelho et al.. PERFIL TERMORREGULATÓRIO DO CAVALO NORDESTINO EM UMA “PEGA DE BOI” NO MATO.. In: Anais do Conservando a Biodiversidade Animal na Era da Popularização Científica. Anais...Valença(BA) IF Baiano - Campus Valença, 2024. Disponível em: https//www.even3.com.br/anais/crga2024_valenca/873750-PERFIL-TERMORREGULATORIO-DO-CAVALO-NORDESTINO-EM-UMA-PEGA-DE-BOI-NO-MATO. Acesso em: 01/07/2025