Equine Thrush

Thrush

Definition

Thrush is a degenerative condition of the Frog caused by anaerobic bacteria characterised by a grey/black necrotic material in the affected area.

Anatomy

Thrush affects the Medial/Lateral & Central Frog clefts

Causes 

Thrush is caused by Unhygienic conditions where anaerobic bacteria can thrive, the bacteria Spherophorus Necrophorus is most commonly found.  The contribution factors to this are;

Unhygienic Conditions

Poor Stable management

Poor grazing

Unclean Feet

Prolong use of sole pack & pads

Irregular Shoeing or Trimming

Long term use of Heart Bars

Clinical Signs

The Clinical Signs of Thrush are

An Offensive odour

Black/Grey narcotic frog

Increase Moisture discharge

Atrophied Frog

Exposure of sensitive Structures

Lameness

Sheared Heels ( in Sever long term cases )

Diagnosis

Diagnosis is based on clinical finding

Treatment

Veterinary 

Veterinary treatment in not normally needed unless infection is sever.

Farriery 

Farriery Treatment is aimed at removing the cause and limiting the cultivation of the bacteria. This can be done by;

Improving Stable Management

Removing all necrotic materiel

Treating with anti-bacterial sprays and Powder 

Regular Trimming and shoring 

   

  The foot should be well trimmed and as clean as possible. With extra attention being paid to the frog clefts. The frog should then be scrubbed with an iodine solution and flushed with hydrogen Peroxide to kill any anaerobic infection.Finally the food should be cleaned and dried with regular use of a hoof pick and anti-bacterial sprays advised.The use of bar shoes and Sole Pack is also ill advised as they can create a low oxygen environment that advantageous for the growth of bacteria. 

Prognosis

A Good Prognosis can be given as long as there is no extensive damage to the underling sensitive structures.