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Evaluating effects of aging on dog olfactory performance.

Lane I Montgomery1, Sarah Krichbaum2, Jeffrey S Katz3

  • 1Department of Psychological Sciences, Auburn University, 226 Thach Hall, Auburn, AL, 36849, USA. lim0004@auburn.edu.

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Canine olfaction declines with age, but training may offer protection. Older dogs showed reduced scent abilities in some tasks, though cognitive function remained stable. Further research is needed.

Keywords:
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Area of Science:

  • Veterinary Medicine
  • Animal Behavior
  • Gerontology

Background:

  • Aging impacts canine function, but age-related changes in olfaction are poorly understood.
  • Olfactory abilities are crucial for dogs' roles as companions and working animals.

Purpose of the Study:

  • To investigate age-related changes in canine olfactory performance using a Natural Detection Task.
  • To explore the relationship between olfactory decline, cognitive function, and training level in aging dogs.

Main Methods:

  • Adapted the Natural Detection Task to assess olfactory abilities in 65 dogs aged 5 years and older.
  • Administered the Cylinder Reversal Task (CRT) to evaluate cognitive function.
  • Analyzed performance data in relation to age and training experience.

Main Results:

  • Dogs aged 5+ years exhibited age-related decrements in olfactory performance under specific conditions.
  • Training level influenced olfactory performance, suggesting protective effects against age-related declines.
  • No age-related changes were observed in cognitive task (CRT) performance, nor significant correlations between cognitive and olfactory abilities.

Conclusions:

  • Canine olfactory capabilities can decrease with age, particularly under challenging conditions.
  • Training experience may mitigate age-related olfactory decline in dogs.
  • Cognitive function appears unaffected by age in the studied cohort, and is not directly linked to olfactory performance changes.