Horses are highly social animals whose welfare depends on appropriate social relationships. Understanding herd dynamics helps owners make better management decisions.
Equine social behaviour is fundamental to welfare — horses are not merely social animals by preference but by deep evolutionary programming. The social interactions of mutual grooming, play, and proximity-seeking that occur between bonded horses are positive welfare experiences. Their absence — in solitary housed horses — creates chronic stress, stereotype development, and reduced immune function. The welfare imperative of social housing must be balanced against the management challenges of introducing new animals and preventing injury from social conflict. Solutions including sufficient space for flight in larger paddocks, appropriate group composition (matched age, size, and status), and gradual introductions reduce conflict risk without sacrificing the welfare benefits of social housing.