Cooccurrence of Yawning and Stereotypic Behaviour in Horses (Equus caballus)
Table 3
Absence of age, sex, breed, and type-of-work effects on yawning (presence/absence and frequency) for ENE and riding schools horses. in all cases. No sex effect could be tested in study 1 (only geldings) and no type-of-work effect could be tested in study 2 (only one type: riding lessons).