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

* [$department/deptdocs.nsf/all/agdex4140?opendocument Blackleg and Other Clostridial Diseases]
* [ Blackleg] -

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  • blackleg — [blak′leg΄] n. 1. an acute, usually fatal, infectious disease of young cattle and sheep, caused by a bacterium (esp. Clostridium chauvoei) and characterized by swelling and blackening of infected muscle tissue 2. a disease of beets and related… …   English World dictionary

  • Blackleg — Black leg , n. 1. A notorious gambler. [Colloq.] [1913 Webster] 2. A disease among calves and sheep, characterized by a settling of gelatinous matter in the legs, and sometimes in the neck. [Eng.] [1913 Webster] …   The Collaborative International Dictionary of English

  • Blackleg — The word blackleg has more than one meaning: *An older slang term for a strikebreaker, as in Blackleg Miner ; scab is the word used today. *A slang term for a person who cheats at cards, a cardsharp. *Various animal and plant diseases, including …   Wikipedia

  • Disease — (Roget s Thesaurus) < N PARAG:Disease >N GRP: N 1 Sgm: N 1 disease disease Sgm: N 1 illness illness sickness &c. >Adj. Sgm: N 1 ailing ailing &c.??? all the ills that flesh is heir to =>(Hamlet) Sgm: N 1 morbidity morbidity …   English dictionary for students

  • 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

  • blackleg — 1. noun a) Fatal cattle disease caused by soil borne bacteria. b) A person who takes the place of striking workers. A scab. 2. adjective Relating to a scab worker …   Wiktionary

  • blackleg — /blak leg /, n., v., blacklegged, blacklegging. n. 1. Also called black quarter, symptomatic anthrax. Vet. Pathol. an infectious, often fatal disease of cattle and sheep, caused by the soil bacterium Clostridium chauvoei and characterized by… …   Universalium

  • 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

  • blackleg — black·leg blak .leg, .lāg n an enzootic usu. fatal toxemia esp. of young cattle caused by toxins produced by an anaerobic soil bacterium of the genus Clostridium (C. chauvoei syn. C. feseri) called also black quarter, quarter evil …   Medical dictionary