Texas FFA Livestock Judging PracticeTest

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Enhance your skills in livestock judging with the Texas FFA Livestock Judging Test. Utilize flashcards and multiple choice questions, with hints and explanations to prepare effectively. Ace your exam!

Practice this question and more.

What disease in cattle and sheep is characterized by lameness, depression, fever, and muscle swelling?

Foot and Mouth Disease
Blackleg
Brucellosis
Anthrax

The correct answer is: Blackleg

Blackleg is a severe contagious disease primarily affecting cattle and sheep, caused by the bacterium Clostridium chauvoei. The symptoms you mentioned, such as lameness, depression, fever, and muscle swelling, are closely associated with this disease. Blackleg often manifests when the spores of the bacteria enter the bloodstream, leading to rapid muscle tissue damage and significant inflammation. The muscle swelling occurs because of the accumulation of gas produced by the bacteria during their rapid multiplication within the infected muscle tissue. Understanding these clinical signs is crucial for timely diagnosis and treatment, as Blackleg can progress quickly and has a high mortality rate if not addressed promptly. Early recognition of the disease can lead to better outcomes, and vaccination can help prevent its onset in healthy herds.