Understanding Allogrooming Through a Dynamic Social Network Approach: An Example in a Group of Dairy Cows
Inés de Freslon1, J M Peralta2, Ana C Strappini3
1Faculty of Veterinary Sciences, Preventive Veterinary Medicine Institute, Universidad Austral de Chile, Valdivia, Chile.
Frontiers in Veterinary Science
|August 28, 2020
Summary
Dairy cows form social bonds through allogrooming, with relationships influenced by age, social rank, and prior interactions. Understanding these social dynamics can improve herd management practices for better cow welfare.
Area of Science:
- Animal Behavior
- Social Network Analysis
- Veterinary Science
Background:
- Cows are gregarious animals, and their social environment significantly impacts welfare and fitness.
- Understanding cow social relationships is crucial for developing effective herd management strategies.
Purpose of the Study:
- To analyze the dynamics of affiliative relationships in dairy cows during early lactation using allogrooming as an indicator.
- To investigate how individual attributes (age, social rank, reproductive state) and network processes shape social grooming patterns.
Main Methods:
- Observed allogrooming behavior in a group of 38 dairy cows over 30 days.
- Applied stochastic actor-oriented models to analyze weekly contact networks.
- Examined structural processes (reciprocity, transitivity) and individual attributes influencing network changes.
Main Results:
- Cows showed reciprocity in grooming, tending to groom those who had groomed them.
- Older cows groomed more, and cows groomed individuals of similar age.
- Higher social rank correlated with receiving less grooming; recently reintroduced cows groomed more.
Conclusions:
- Social network analysis reveals complex, non-linear relationships in dairy cows.
- Allogrooming patterns are influenced by age, social rank, and group dynamics.
- Findings support the development of management practices aligned with natural cow social behavior.
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