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Rat cheek gland compounds: behavioural response to identified compounds
1Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, India. skanmbt2000@yahoo.com
Indian Journal of Experimental Biology
|February 8, 2002
Summary
Rat cheek gland secretions contain compounds that act as pheromones, influencing the behavior of both male and female rats. These chemical signals play a role in social and reproductive interactions within rat populations.
Area of Science:
- Animal Behavior
- Chemical Ecology
- Mammalian Physiology
Background:
- The Wistar rat (Rattus norvegicus albinus) is a widely used model organism in scientific research.
- Cheek glands in mammals are known to produce secretions involved in communication.
Purpose of the Study:
- To identify and analyze the chemical composition of cheek gland secretions from male and female Wistar rats.
- To investigate the potential pheromonal functions of these identified compounds through olfactory preference tests.
Main Methods:
- Gas chromatography/mass spectrometry (GC/MS) was employed to analyze the volatile compounds present in rat cheek gland secretions.
- Olfactory preference tests were conducted using the identified compounds to assess their attractiveness to conspecifics.
Main Results:
- Alkanes, aliphatic acid esters, and alcohols were identified in the cheek gland secretions.
- Specific phthalate esters were predominant in male secretions, while different compounds, including an alcohol, were major in female secretions.
- Several identified compounds demonstrated attractiveness to both male and female rats, with some showing sex-specific attraction, suggesting pheromonal activity.
Conclusions:
- Rat cheek gland secretions contain distinct chemical profiles in males and females.
- The identified compounds exhibit pheromonal properties, influencing conspecific attraction and potentially playing a role in rat social and reproductive behaviors.