exam 4 Flashcards
(81 cards)
Draft
cold blooded/ mild temper up to 3000 Ibs heavy boned/ framed power forward movement -Clydesdale -Shire Draft, Draught, Dray ( to pull or haul)
Light
Hot blooded Bred for riding (speed, agility, endurance) 1,000-1,500 -Quarter horse -Arabian -Thoroughbred
Gated
Bred for "smooth movement" Cover ground efficiently Hot blooded -TN walking horse -American Saddlebred
Warm Blooded
bred for riding (Dressage, Jumping (Olympics) Moderate frame Heavier boned -Hanoverian -Dutch Warmblood
Pony
Bred for draft and riding <14.2 hand 500-900 Ibs -shetland -Welsh -Hackney
Miniature horse
8.5-9.5h
conformation more of a horse
Donkey
Draft and riding
Challenges of horses
- Pet classification/regulations
- Human health and environment concerns
- Elimination of slaughter
- Business Disaster
Pet vs Livestock
Regulation:
Zoning
Use
Training/care
American Association Of Equine Practitioners
No longer kill
1825/ year
Manure Management
Land utilization
50 Ibs/ day = 9 tons/ horse/ year
Spread
+remove from stall
+reduces pests
-spread parasite/ weeds
Compost
+reduce volume
+reduce weed/ parasite
5 Ways the horse survives by speed
- Vision
- Digestive system
- O2 Capacity
- Limb Anatomy
- Conformation
Vision
Eyes on side of head
357 vision
stereoscopic
Stereoscopic
Long range depth perception
- poor short range depth perception
- two blind spots
Pupil
Regulates light
Lens
focus light on retina
Retina
Location - sensory neurons
cones=colors
rods=low light
Accommodation
degree of lens ability to change shape
Why are horses “Fixed-Farsighted”?
Cones are on a horizontal shift (spread out and less number)
more rods
Tapetum
reflective layer of cells behind the retina
- amplifies light
- “deer in headlights”
Equine Eye
- Greater low light vision (Rods, Tapetum)
- Dichromic- short wave(blue) & middle/long(yellow)
Speed
stride length & frequency of stride