Table 1 Type (oral/motor), name and description of stereotypic behaviours observed
Type | Name | Description |
|---|---|---|
Oral | Cribbing | The horse grasps a fixed object with its incisors, pulls back and draws air into its oesophagus while emitting a characteristic pharyngeal grunt. |
Lip play | The horse moves its upper lip up and down without making contact with an object, or the horse smacks its lips together. | |
Tongue play | The horse sticks out its tongue and twists it in the air. | |
Lip or teeth rubbing | The horse rubs its upper lip or its upper teeth repetitively against the box wall. | |
Repetitive licking/biting | The horse licks or bites the box walls, box grids or external part of the feeding trough. | |
Motor | Head shaking and nodding | The horse bobs its head repeatedly up and down or tosses its head in recurrent and sudden bouts. |
Weaving | The horse sways laterally, moving its head, neck, forequarters and sometimes hindquarters. | |
Box walking | The horse paces a fixed route around the stall. | |
Door kicking | The horse kicks the door of the box repeatedly with its forelegs. |