study of physiological responses of equines without defined breed and quarter horse to the climatic conditions of teresina, piauÍ estudo de respostas fisiolÓgicas de eqÜinos sem raÇa definida e da raÇa quarto de milha Às condiÇÕes climÁticas de teresina, piauÍ

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ID: 232293
2008
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Abstract
This study was developed to evaluate the adaptability of without defined breed and Quarter Horses to the thermal conditions of Teresina, using physiological parameters using tolerance tests and heat dissipation. The measures of rectal temperature and heart and respiratory rates were collected in March and October. These months represents, respectively, the rainy period and the hot and dry period in the area studied. The response of each genetic group was evaluated using physiological parameters and adaptations indexes (Ibéria, Benezra and Rainysby tests). In each herd the experimental design was completely randomized and the statistical model included the effect of period of the year and/or schedule of measurement of the parameter. The thermal environment in the area during the dry period of the year hinders the homoeothermic maintenance in the animals, limiting the physical activities with horses. The physiological parameters suffered with an increase of the environmental temperature. The Quarter Horses were shown to be adapted to the environmental conditions, with small alterations in the rectal temperature caused by increment of the temperature. The hot thermal environment during the dry period of the year interfered in the homoeothermic behavior of the Without Defined Breed animals.<br /><br />KEY WORDS: Adaptation, indexes, rectal temperature, respiratory rate, thermal environment. Estudou-se, com eqüinos Sem Raça Definida e com animais da raça Quarto de Milha, o comportamento de parâmetros fisiológicos com objetivo de avaliar, por meio de testes de tolerância e de dissipação de calor, a adaptabilidade desses animais ao ambiente térmico de Teresina, PI. Coletaram-se as medidas de temperatura retal e as freqüências cardíaca e respiratória em março e outubro, período esse que representa, respectivamente, o período chuvoso e o quente e seco na região. A resposta de cada grupo genético foi avaliada utilizando-se os parâmetros fisiológicos e índices (adaptações dos testes de Ibéria, Benezra e Rainysby). Em cada plantel o delineamento estatístico foi o inteiramente casualisado e as análises feitas com modelo que incluiu efeito de período do ano e/ou horário de mensuração do parâmetro. O ambiente térmico na região, no período seco do ano, dificulta a manutenção de homeotermia nos animais, limitando a realização de atividades físicas com eqüinos. Os parâmetros fisiológicos sofreram influência de elevação da temperatura ambiente. A raça Quarto de Milha mostrou-se adaptada às condições ambientais avaliadas, com pequena alteração na temperatura retal diante do incremento da temperatura ambiente. O ambiente térmico quente do período seco do ano interferiu na homeotermia dos animais Sem Raça Definida.<br /><br />PALAVRAS-CHAVES: Adaptação, ambiente térmico, índices, freqüência respiratória, temperatura retal.
Reference Key
turco2008cinciastudy Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Sílvia Helena Nogueira Turco;Amilton Paulo Raposo Costa;Danielle Maria Machado Ribeiro Azevedo;José Elivalto Guimarães Campelo;Luiz Augusto de Oliveira;José Wilson da Silva Moura
Journal proceedings of the winter simulation conference winter simulation conference
Year 2008
DOI
DOI not found
URL
http://www.revistas.ufg.br/index.php/vet/article/view/545
Keywords
equinoculturaagricultureanimal culture

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