Blackleg -

Because treatment is rarely successful—due to how quickly the toxin works—prevention is the only reliable defense.

: High fever, loss of appetite, and severe lameness. Prevention and Control

Blackleg (also known as "black quarter" or "quarter ill") is a highly fatal, non-contagious bacterial disease that primarily affects young, healthy cattle and sheep. It is known for its rapid progression, often resulting in sudden death within 12 to 48 hours.

: As the bacteria multiply, they release gas that builds up under the skin, creating a "crackling" sound (like bubble wrap) when pressed.