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''Actinomyces bovis'' is a species of the ''[[Actinomyces species - Overview|Actinomyces]]'' genus.

''Actinomyces bovis'' is a species of the ''[[Actinomyces species - Overview|Actinomyces]]'' genus.

***Found naturally in oral cavity of cattle

It is found naturally in the oral cavity of cattle and prefers anaerobic conditions but is not a strict anaerobe. Entry of the organism into tissues is following trauma to the mucosa from rough feed or tooth eruption. It causes [[Chronic Inflammation - Pathology#Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[Mandibular Osteomyelitis|lumpy jaw]].

***Prefers anaerobic conditions but not strict anaerobe

It usually invades the mandible to cause [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]] and may extend to surrounding [[Muscles Inflammatory - Pathology#Actinomycosis bovis|muscles]].

***Entry of organism into tissues following trauma to the mucosa from rough feed or tooth eruption

 

***Causes [[Chronic Inflammation - Pathology#Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[Mandibular Osteomyelitis|lumpy jaw]]  

***Usually invades mandible to cause [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]] and may extend to surrounding [[Muscles Inflammatory - Pathology#Actinomycosis bovis|muscles]]

The lesion begins as a painless swelling of the affected bone, the swelling becomes more painful and enlarges over a number of weeks, gaining fistulous tracts which discharge pus. The organisms are found in yellow sulphur granules and have club colony formation. Colonies adhere to agar media and are non-haemolytic.

***The lesions begins as a painless swelling of the affected bone

 

***Swelling becomes more painful and enlarges over a number of weeks, gaining fistulous tracts which discharge pus

***Organisms found in yellow sulphur granules

Surgical treatment is possible when the lesions are small and prolonged parenteral penicillin treatment may be beneficial early in the disease.

***Club colony formation

***Colonies adhere to agar media and are non-haemolytic

***Surgical treatment possible when lesions are small

***Prolonged parenteral penicillin treatment may be beneficial early in the disease

[[Category:Actinomyces]][[Category:Cattle]]

[[Category:Actinomyces]][[Category:Cattle]]

[[Category:To_Do_-_AimeeHicks]]

[[Category:To_Do_-_AimeeHicks]]