Behavioural Problems Horses Flashcards
Context of normal behaviour
social herbivore
forager
open planes
Stereotypies
undesirable for owner and poor horses welfare
disorders of oral and eating behaviour
abnormal actions and reactions
Cribbing
grasp edge of its stall or other fixture with incisor teeth
presses teeth down and swallowing movement occurs and air passed into stomach
accompanying grunt
can wear teeth and reduce grazing
Wind Sucking
nods head and neck several times head jerks up and open mouth takes in air forcefully grunting stomach dilation and bloat gastrointestinal dysfunction nutritional deficiency can lead to poor condition
infrequent or with little impact
may be ignored
McGreevy et al (1995) Uk leisure horses
alarmingly high prevalencies that match that found intensively trained competition horses
Redbo et al (1998) swedish survey of racing trainers
wood chewing- low amount of forage
stereotypies- high concentrate, low forage and more horses per trainer
McGreevy et al (1995) risk factors for race horses
more time in stable
less time forage
bedding other than straw
box design minimizing horse contact
McGreevy (2004)
inadequate diet/digestive disturbance
Luthersson et al (2009)
gastric ulcers 53% of leisure horses
Hemmings et al (2007)
some neuronal changes in basal ganglia
McGreevy and Cooper (2002) frustrated
activity and social context likely to cause
stereotypies may relieve stress…
cortisol plasma levels high before but drop after stereotypy
Nalaxon
opioid antagonist
reduced crib biting by 84%
Waters (2002)
abrupt and early weaning may be stressful and is associated with onset of abnormal behaviour