Oesophageal obstruction or choke in horses causes acute distress and requires prompt veterinary treatment to prevent aspiration pneumonia and oesophageal damage.
Choke causes acute welfare distress from the sensation of obstruction, difficulty swallowing and distress behaviour. Aspiration of food material during nasal reflux can cause aspiration pneumonia which is a serious secondary welfare complication. Prolonged choke causes oesophageal mucosal damage that may lead to stricture formation with long-term welfare implications. Prevention through appropriate feed preparation and dental management is essential.