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Respuesta del cortisol y la frecuencia cardíaca de las yeguas durante el procedimiento de cría en mano con y sin
Maria Fernanda Atayde1, Beatriz Vidondo2, Rupert Bruckmaier3
1Swiss Institute of Equine Medicine, Vetsuisse Faculty University of Bern, Avenches, Switzerland.
Equine veterinary journal
|September 2, 2025
Resumen
La cría de caballos en mano con una contracción de labios causa un ligero estrés en las yeguas, indicado por un aumento de los niveles de cortisol. Las yeguas las toleraban bien o las rechazaban por completo.
Área de la Ciencia:
- Reproducción y bienestar equino
- Comportamiento animal
- Ciencias veterinarias
Sus antecedentes:
- La cría en mano es común en la industria del caballo a nivel mundial.
- Las implicaciones para el bienestar de los métodos de contención durante la cría equina requieren una investigación detallada.
Objetivo del estudio:
- Para evaluar las respuestas al estrés en las yeguas durante la cría en mano con una contracción de los labios y cojear.
- Determinar si los métodos de contención afectan a la expresión del comportamiento estreo en las yeguas.
Principales métodos:
- Diseño de cruce intraindividual en el que participan 10 yeguas de sangre caliente y 6 sementales Franches-Montagnes.
- Medición del cortisol salival, la frecuencia cardíaca y la variabilidad de la frecuencia cardíaca como indicadores de estrés.
- Evaluación del comportamiento utilizando un etograma durante las sesiones estandarizadas de bromas y reproducción.
Principales resultados:
- El uso de contracciones labiales aumentó significativamente las concentraciones salivales de cortisol en yeguas (p=0,04).
- Dos de cada diez yeguas no toleraban la aplicación de tobillas, lo que indicaba una posible intolerancia.
- En los resultados proporcionados no se detalló explícitamente ningún impacto significativo en el comportamiento estroso, pero se midieron los indicadores de estrés.
Conclusiones:
- La aplicación de la contracción labial durante la cría en mano se asocia con un ligero aumento del estrés de las yeguas.
- Las yeguas toleran bien o no las toleran en absoluto, lo que sugiere una variabilidad individual en la respuesta.
- Se necesitan más investigaciones con muestras de mayor tamaño para comprender plenamente el impacto en el bienestar de los métodos de contención en la cría equina.
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