Parámetros fisiológicos de machos caprinos criados en condiciones climáticas tropicales (Brasil)

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i9.7698

Palabras clave:

Bioclimatolia; Cortisol; Estrés por calor; Tiroxina; Triyodotironina.

Resumen

Este estudio evaluó la capacidad adaptativa y las variaciones en los parámetros fisiológicos de cuatro machos cabríos de una región templada (raza alpina) en un clima tropical durante doce meses. Se evaluó la temperatura ambiente, la humedad relativa y la temperatura utilizando un termómetro de globo negro para calcular la temperatura del globo negro y el índice de humedad; se recolectaron cinco veces al día, tres veces a la semana y durante las cuatro estaciones anuales. Cada quince días durante el período experimental, se midió la frecuencia respiratoria y cardíaca, así como la temperatura rectal y superficial de los animales por la mañana, y se tomaron muestras de sangre para niveles hormonales (cortisol, T3 y T4) y hemograma completo. Hubo una diferencia entre los valores medios de temperatura superficial, frecuencia respiratoria, hormonas y algunos parámetros hematológicos (proteína total y monocitos) entre temporadas (P <0.05). Sin embargo, no se observaron diferencias en los casos de estrés por calor, debido a que los parámetros fisiológicos se encuentran dentro de los límites normales y esperados para las cabras. Así, se concluye que los machos cabríos de la raza alpina, cuando se crían de forma intensiva, mantienen la homeotermia y son bastante adaptables a las condiciones del clima tropical.

Citas

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Publicado

06/09/2020

Cómo citar

DIAS, J. C. O. .; VELOSO, C. M. .; SANTOS, M. C. da R. .; OLIVEIRA, C. T. S. A. M. de .; SILVEIRA, C. O. . Parámetros fisiológicos de machos caprinos criados en condiciones climáticas tropicales (Brasil). Research, Society and Development, [S. l.], v. 9, n. 9, p. e768997698, 2020. DOI: 10.33448/rsd-v9i9.7698. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/7698. Acesso em: 2 jul. 2024.

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Sección

Ciencias Agrarias y Biológicas