Horse Behaviour Flashcards
What is the oldest ancestor of the horse
Przewalski’s horse (pony-shaped Mongolian wild horse)
When do feeding bouts increase in time
At dawn and in late afternoon
What is the horses panoramic vision
330-350 degrees
What colours can horses see well
Yellow and blue (dichromatic)
What is dichromatic
Can see two primary colours well
How do horses identify toxic or safe plants
Using taste (harmful = bitter)
Where is allogrooming common in horses
Along mane, less common on back or rump
What is a harem
Social group in horses consisting of a number of females and young and one male
What does the stability of the harem depend on
- The stallions herding instinct
- Strong social attachment between members
- Stallion rejects intruders
How does the hierarchy work in small vs large herds
Small = linear
Large = triangular (A may dominate B who may dominate C who can dominate A)
When does estrus decrease in mares
At the height of the breeding season
What is “winking”
repeated exposure of vulva tissue
How long is the gestation period
340 + 5 days
When do feral vs stabled horses foal
Feral = early morning
Stabled = at night or dawn
How does confinement affect a horse
Compromise feeding (eat and move), social, kinetic beh & health
How much time does a stabled vs pasture horse spend grazing
Stabled = 10% (consume rapidly)
Pasture = 70%
How is elimination behaviour different in stalls
Horse cannot avoid their own waste, males might urinate more frequently on fresh bedding
How is kinetic behaviour affected by stabling
Restricted space makes it hard to roll
Post-inhibitory rebound after being stall-bound may lead to unwanted behaviours during training (overdo behaviour once they have the space)
Why do horses roll
Expend energy, trying to get scent on them to cover up their space
Why do people use feral horses for behavioural comparison rather than Prezwalski horse
Prezwalski came from a shallow gene pool (11 animals) over the past 20 generations
Why do horses seek companions
Safety, comfort, detection of food, insecure when isolated
What does a horse rely on for self preservation
Caution, speed, agility,
Why does restricted movement and periods of fasting affect horses
Needs to eat and move (move to ruminate)
What kind of feeder is the horse
Generalist herbivore
What factors affect horses foraging behaviour
Temp down = less foraging
Longer feeding bouts at dawn/late afternoon
Breaks between are short (for maintenance, social, repro)
Describe a horses vision
Panoramic vision = 330-350
Binocular vision = 60-70
Image magnification 50% better than humans
Night vision (tapetum lucidum)
Dichromatic vision (yellow/blue)
Discriminate between shades of grey (troubles with green/grey)
What does over bending do to a horses vision
Blind area directly in front
Describe horses hearing
Funnel shaped (arc 180)
Impaired hearing = drooped ears, not moving towards sound
How can horses protect their hearing
Lay their ears flat