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Salivary Cortisol in Guide Dogs.

Enrique De la Fuente-Moreno¹, Pedro Paredes-Ramos², Apolo Carrasco-García²

¹Doctorado en Neuroetología, Xalapa Universidad Veracruzana, Xalapa 91190, Mexico.

Animals : an Open Access Journal From MDPI

|June 28, 2023

Summary

Guide dogs exhibit higher basal cortisol levels, a key stress hormone, compared to companion dogs. This indicates that the working demands of guide dogs may lead to increased physiological stress.

Keywords:

companion dogs cortisol guide dogs welfare

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Published on: August 23, 2019

Area of Science:

Veterinary Medicine
Animal Behavior
Endocrinology

Background:

Working dogs, such as guide dogs, face demanding environments and stimuli, potentially leading to elevated stress levels.
Cortisol is a primary biomarker for physiological stress in mammals, including canines.
Comparing guide dogs with companion dogs provides insight into the impact of working roles on canine stress physiology.

Purpose of the Study:

To investigate and compare salivary cortisol levels between guide dogs and companion dogs.
To assess the physiological stress response of guide dogs to social isolation and acute noise exposure.
To determine if the working role influences basal cortisol levels in dogs.

Main Methods:

Salivary cortisol was measured in seven guide dogs and seven companion dogs (same breed, former guide dogs).
Samples were collected before, during, and after a 60-minute period of social isolation with a 110-decibel gunshot sound stimulus introduced after 15 minutes.
Statistical analysis using two-way ANOVA was employed to compare cortisol levels between groups and over time.

Main Results:

Guide dogs consistently exhibited higher salivary cortisol levels throughout the testing period compared to companion dogs.
No significant differences in cortisol levels were observed over time or in the interaction between time and group.
The findings suggest a difference in basal cortisol levels related to the working status of the dogs.

Conclusions:

The working role of a guide dog is associated with elevated basal cortisol levels compared to companion dogs.
This study highlights potential chronic stress implications for working canines.
Further research could explore long-term health and welfare implications for guide dogs.