Breed differences of heritable behaviour traits in cats.

Area of Science:

• Animal Behavior
• Genetics
• Veterinary Science

Background:

• Selective breeding has created diverse cat breeds with significant morphological variations.
• Distinct behavioral differences among cat breeds are suspected but have been understudied.

Purpose of the Study:

• To investigate behavioral differences across various cat breeds.
• To determine the heritability of behavior in domestic cats.
• To understand the genetic and environmental influences on feline behavior.

Main Methods:

• A comprehensive health and behavior questionnaire was administered to 5726 cat owners.
• Logistic regression models were used to analyze breed-specific behavior differences, controlling for environmental factors.
• Heritability estimates and phenotypic/genetic correlations were calculated for selected traits in three breeds.

Main Results:

• Behavioral differences were identified in 19 cat breeds/groups across ten traits.
• Cat breeds clustered into four groups, with Turkish Van and Angora cats forming a distinct cluster.
• Moderate heritability (0.4–0.53) was found for seven behavior traits, with significant genetic variation within breeds.

Conclusions:

• Cat breeds exhibit significant behavioral divergence, paralleling their morphological differences.
• Feline behavior is influenced by both genetic and environmental factors, with substantial heritability observed.
• This research provides a foundation for understanding the genetic basis of behavior in domestic cats.