The ontogeny of flehmen in horses

摘要: Abstract Flehmen behaviour in Welsh pony ( Equus caballus ) mares and foals living on pasture was observed during 807 h of focal sampling. A series flehmens performed at one site defined as a flehmen incident. Colts exhibited incidents more frequently an incident than did fillies or mares. Filies mares, but not peak frequency performing weeks 1–4 with subsequent linear decrease up to 17–20. Usually, occurred without the subject having had direct contact nostrils, lips, tongue possible stimulant. Twenty-six per cent after urination by another pony. Seven showing flehmen.