New infection with Corynebacterium pseudotuberculosis reduces wool production

Abstract

The effect of natural Corynebacterium pseudotuberculosis infection on wool production and quality in sheep was examined in light of evidence that artificial C pseudotuberculosis infection causes wool production loss. A toxin ELISA was used to identify sheep that had been infected with C pseudotuberculosis. Greasy and clean fleece weights and fibre diameter were compared in infected and uninfected sheep. C pseudotuberculosis infection caused a 3.8 to 4.8% decrease in greasy wool production and a 4.1 to 6.6% decrease in clean wool production. C pseudotuberculosis infection did not affect fibre diameter. The effects of caseous lymphadenitis (the disease caused by C pseudotuberculosis infection) cause an annual loss of about $17 million in wool production to the Australian wool industry.

In vivo evaluation of antiseptics and disinfectants on control of Caseous Lymphadenitis: clinical, haematological, serological and microbiological monitoring

“…It is an infectious disease, which is a worldwide problem, responsible for causing severe economic losses for goat and sheep industry (Alves et al, 2007). The depreciation of skins value, carcass condemnation, falling in production of meat, milk, wool and reproductive efficiency are some of the main damages caused by CL (Krishna et al, 1977;Figueiredo et al, 1982;Paton et al, 1994;Paton et al, 2003), in addition to public health risk posed by the zoonotic potential described for C. pseudotuberculosis (Mills et al, 1997;Peel et al, 1997;Join-Lambert et al, 2006).…”

Corynebacterium pseudotuberculosis: microbiology, biochemical properties, pathogenesis and molecular studies of virulence

“…These abscesses can also develop internally in organs, such as the lungs, kidneys, liver and spleen, characterizing visceral CLA [72,91]. In some cases, the infection produces few obvious clinical signs in the animal, remaining unrecognized until a post-mortem examination has been carried out, making it difficult to obtain definitive data about the prevalence of this disease [3,17,83].…”

“…abattoirs [3,83]. The manifestations of CLA in small ruminants are characterized mainly by bacteria-induced caseation necrosis of the lymph glands.…”

Prevalence and Etiology of Abscess Disease of Sheep and Goats at Qassim Region, Saudi Arabia

“…Previous studies (Paton et al, 1988; De la Fuente very difficult to control because of its poor response to et al, 1997) have indicated spread of CLA mostly treatment, its ability to persist in the environment and occurred around the time of shearing. Several modes the limitations in detecting subclinically infected of transmission of CLA during shearing have been animals (Ivanovic et al, 2009;Williamson, 2001).…”

“…The disease and caseous lymphadenitis (pseudo-losses are caused by condemnation and downgrading tuberculosis) deserves interest because of its of carcasses and skin in abattoirs as well as reduction contagious nature, worldwide distribution and lack of in wool growth (Paton et al, 1988(Paton et al, , 1994Williamson, effective …”