Polioencephalomalacia is a relatively rare disease, which is caused by thiamine deficiency associated with a diet high in sulphate. It results in the animal ‘star gazing’, as shown in here, or ‘dog sitting’ – becoming blind, circling aimlessly or having a dejected appearance. It is invariably fatal.
Using this item
Photograph by Gary Clark
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.