Blackleg (disease)


Blackleg (disease)

Blackleg, black quarter, quarter evil, quarter ill (Latin: "Gangraena emphysematosa") is an infectious bacterial disease of sheep and cattle, caused by "Clostridium chauvoei" bacteria. It is found all over the world. A symptom of blackleg is characteristic swellings which make a cracking sound under pressure. Blackleg vaccine gives immunity against it.

Causative Organism

"Clostridium chauvoei" and "Clostridium feseri".

Vaccination and Prevention

The use of 7-type clostridial vaccination is the most common preventative measure taken against blackleg. Burning the upper layer of soil to eradicate left-over spores is the best way to stop the spread of blackleg from diseased cattle.

External links

* [http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex4140?opendocument Blackleg and Other Clostridial Diseases]
* [http://www.cattle.com/CattleHealth/blackleg.aspx Blackleg] - Cattle.com


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  • Disease resistance in fruit and vegetables — There are a number of lines of defence against pests (that is, those animals that cause damage to the plants we grow) and diseases in the organic garden, principal among these being the practice of good husbandry, creating healthy soil and… …   Wikipedia

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  • blackleg — Synonyms and related words: Texas fever, anthrax, aphthous fever, bighead, black quarter, blackwater, blind staggers, bloody flux, broken wind, cattle plague, charbon, cheat, cheater, chiseler, cozener, crook, defrauder, diddler, distemper, fink …   Moby Thesaurus

  • blackleg — black•leg [[t]ˈblækˌlɛg[/t]] n. 1) vet an infectious, often fatal disease of cattle and sheep caused by the soil bacterium Clostridium chauvoei and characterized by darkened and swollen upper legs 2) ppa a) a disease of cabbage and other… …   From formal English to slang

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