Breed differences in behavioural response to challenging situations in kittens.

Area of Science:

• Ethology
• Comparative Psychology
• Animal Behavior

Background:

• Previous experiments revealed behavioral differences between Oriental/Siamese/Abyssinian (OSA) and Norwegian Forest (NFO) kittens in the Open Field Test (OFT).
• Further investigation is needed to understand the underlying mechanisms of these behavioral variations.

Purpose of the Study:

• To analyze kitten responses to a novel, threatening object (TO) during the Open Field Test (OFT).
• To investigate potential differences in coping strategies and limbic system development between OSA and NFO kittens.

Main Methods:

• Kittens (43 OSA, 39 NFO) aged 4-10 weeks were exposed to a sudden threatening object during the OFT.
• Behavioral responses and heart rate (HR) were recorded and analyzed using focal animal sampling.
• Habituation, memory retention, and responses to the TO were assessed.

Main Results:

• NFO kittens exhibited active coping strategies, characterized by avoidance, high exploration, and escape attempts, consistent with slower limbic development.
• OSA kittens displayed passive coping, with less influence from the TO on exploration and reduced vocalizations.
• Emotional tachycardia in OSA kittens suggested potential low arousability, influencing their reaction to the experimental setting.

Conclusions:

• Behavioral differences suggest distinct coping mechanisms and developmental trajectories in OSA and NFO kittens.
• NFO kittens appear to adopt active coping, while OSA kittens may exhibit passive coping possibly linked to lower arousal.
• The study highlights breed-specific behavioral predispositions influencing responses to novelty and challenge.