ORIGINAL RESEARCH
Comparative Anatomy and Functioning
of Olfactory Tract in Selected Canidae
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1
Department of Animal Anatomy, Poznan University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznan, Poland
2
Department of Sports Dietetics, Poznan University of Physical Education,
Królowej Jadwigi 27/39, 61-871 Poznan, Poland
3
Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences,
Wojska Polskiego 28, 60-637 Poznan, Poland
Submission date: 2022-09-14
Final revision date: 2022-12-05
Acceptance date: 2022-12-12
Online publication date: 2023-04-18
Publication date: 2023-05-18
Pol. J. Environ. Stud. 2023;32(3):2787-2794
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ABSTRACT
The sense of smell is the main sensation in wild animals necessary for hunting, and survival.
A good example of such animal is grey wolf, which is able to sense the victim from a distance of
up to 2 km. Domestic dogs, especially brachycephalic, because of the morphology of nasal cavity and
life’s conditions lost the so high developed olfactions ability. In that work, the multidisciplinary analysis
of olfactory bulb responsible for olfaction were carried out. The research of macro- and microscope
analyses, and also the technique of flow cytometry were used to estimate the level of high and low
activity glomeruli in olfactory bulb in investigated animals. It was observed that in grey wolf the level
of active glomeruli is higher than in badger and fox and the olfactory bulb has a higher size. That
observations command that olfactory bulb as a part of telencephalon has the ability to create a new
synapse depending on living conditions of animal.