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Johne's disease

Johne’s disease (also known as paratuberculosis) is a common cause of death and reduced growth rates among deer.

The disease is caused by a bacterial infection (Mycobacterium avium subspecies paratuberculosis) in the gut. The infection starts in the small intestine and spreads to the related lymph nodes. As the disease advances the intestinal walls thicken, reducing digestion and absorption of nutrients and causing the characteristic diarrhoea.

How does the disease spread?
What are the symptoms?
Effect on deer production
Control of Johne's disease
Professional advice

More resources

Information on Johne's disease is available in a convenient DINZ Deer Fact sheet (August 2015). Download your own copy here >>


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