The Equine Hoof by hLuYC1X

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									The Equine Hoof
  By: Nadja Koehler
              Hoof Wall
 Made   up of keratinized epithelial cells
 Cells are arranged in tubules and run from
  coronary band to ground surface
 Thickest at toe becoming thinner at quarters
  (sides)
 Contains pigment
             Hoof Wall
Function:
 Weight-bearing   surface of the hoof
 Helps retain moisture
 Protect internal structures of the foot
                  Laminae
 Two   Layers:
  Insensitive-forms   inner layer of hoof wall
  Sensitive-covers surface of coffin bone, acts as
   attachment for hoof wall and coffin bone, and
   acts as main area of circulation within foot
  White Line-yellowish area where layers
   intermesh
                    Bars
 Where hoof wall is reflected back toward toe
 Located in heel area of hoof



Function:
  Prevent   over-expansion of hoof wall
                         Sole
 Covers  bottom of coffin bone
 Sensitive
 Self-limiting growth
   Sloughs   off when thickness > hoof wall
 Concave    at ground surface
   Shape   prevents sole from directly bearing weight
 Easily   bruised
   Occurs   when bearing weight: heavy riders, “flat feet”
                              Frog
 Occupies area between bars
 Wedge-shaped
     Apex — point of frog
     Cleft—ridge in rear portion of frog

 Sensitive
 Produced by papillae
 Elastic
     Moisture content ~ 50%
     Greasy secretions from fat glands bet. digital cushion and frog
             Digital Cushion
 Also called plantar cushion
 Fleshy “heel”
 Back half of hoof
 Fibro-elastic, fatty

 Functions:
   Shock absorber for foot
   Pumps blood from foot back to heart
                    Bones
Three Bones:
 Short   pastern
   Partly   in and partly above hoof
 Navicular    bone
   Smallest bone
   Increases articular surface and movement of
    coffin bone
           Bones Continued
Coffin   bone
  Location-to   the front and slightly to outer side
   of hoof
  Largest bone
  Provides shape to foot and rigidity needed for
   weight-bearing
  Resembles miniature hoof in shape
The Horse’s Second Heart

      What do I mean??


 The Hoof, of course!
                     How?
 Blood  is pumped to the hoof from the heart
  through arteries
 With each step, pressure is put on the veins in the
  plantar cushion of hoof which pumps the blood
  back to the heart
 As this pressure is released, the blood flows back
  to the hoof through the arteries by a combination
  of heart pulses and gravity
                  Lameness
 Most   lameness can be prevented


How?
   Proper   foot care and management
           Healthy Hooves
 Frog is a good indicator of foot health
 Daily maintenance prevents lameness
 Good foot care should include:
   Regularity--Routine cleaning
   Frequency--Periodic trimming
   Cleanliness
   Use of proper corrective measures--Corrections and
    treatment
           Routine Cleaning
 Includes   use of:
   Hoof pick
   Fine-bristled wire brush
 Always  clean from heel toward toe
 Do not apply too much pressure with either tool.
  This can cause:
   Damage-bruising, abcess, infection, etc.
   Disturbance of moisture balance
                   Trimming
 Goal:
   To   maintain proper shape and length of the hoof
 Hooves should be trimmed every 4-6 weeks
  depending on usage of your horse
 Tools:
   Hoof knife
   Nippers
   Rasp
        What causes lameness?
   Stone in the foot-
       Stones lodge between shoe and frog
   Bruised sole-
       Direct injury of flat of foot by stones or irregular ground
   Corns-
     Bruising of sole between bar and hoof wall
     Caused from poorly fitted shoes or neglect to reshod regularly
                    Causes continued...
   Pricked foot or Puncture wounds-
     Result from foreign objects entering sole (stone, glass, wire, etc.)
     Foreign objects can stay in foot for as long as a year

   Hoof cracks-
     Occur mostly in dry or untrimmed hooves
     Can also be caused by injury of hoof forming tissue

   Thrush-
       Bacterial infection of frog and sole due to irregular cleaning and
        dirty conditions
                  Causes continued...
   Laminitis-
     Inflammation of laminae
     Caused by overeating of grain, ingestion of cold water by a hot
      horse, retained afterbirth, overfatness, idle horse on a lush
      pasture
   Navicular disease-
     Caused by injury to navicular bone
     Common in breeds with genetic defects in conformation
     Increased probability with heavy use on hard ground

								
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