Title:	High sero-prevalence of caseous lymphadenitis identified in slaughterhouse samples as a consequence of deficiencies in sheep farm management in the state of Minas Gerais, Brazil.
Authors:	GUIMARAES, A. S. CARMO, F. B. HEINEMANN, M. B. PORTELA, R. W. D. MEYER, R. LAGE, A. P. SEYFFERT, N. MIYOSHI, A. AZEVEDO, V. GOUVEIA, A. M. G.
Affiliation:	ALESSANDRO DE SA GUIMARAES, CNPGL; FILIPE B. CARMO, UFMG; GEPOC; MARCOS B. HEINEMANN, UFMG; GEPOC; RICARDO W. D. PORTELA, Universidade Federal da Bahia; ROBERTO MEYER, Universidade Federal da Bahia; ANDREY P. LAGE, UFMG; GEPOC; NÚBIA SEYFFERT, UFMG; ANDERSON MIYOSHI, UFMG; VASCO AZEVEDO, UFMG; GEPOC; AURORA M. G. GOUVEIA, UFMG; GEPOC.
Date Issued:	2011
Citation:	BMC Veterinary Research, v. 7, article 68, 2011.
Description:	Background- Caseous lymphadenitis (CLA), caused by Corynebacterium pseudotuberculosis, is one of the most important diseases of sheep and goats, causing considerable economic losses for herd owners. Results-We assessed the seroprevalence of infection with C. pseudotuberculosis in 805 sheep from 23 sheep farms that supply slaughterhouses in the state of Minas Gerais; we also analyzed management practices that could be associated with CLA occurrence, used on these and nearby farms that also supplied animals to the slaughterhouse (n = 60). The serum samples for assaying CLA infection were taken at the slaughterhouse. Frequency of infection with C. pseudotuberculosis was estimated at 43.7%, and farm frequency was estimated at 100%. Management practices were analyzed through a questionnaire. All farmers (60/60) had extensive/semi-extensive rearing system; 70.0% (42/60) identified sheep individually; 11.7% (7/60) had periodical technical assistance; 41.7% (25/60) disinfected the facilities; 86.7% (52/60) used barbed wire fences and did not implement adequate CLA control measures; only 11.7% (7/60) of breeders reported vaccination against C. pseudotuberculosis; 13.3% (8/60) took note of animals with clinical signs of CLA; 1.7% (1/60) opened and sanitized abscesses, and isolated the infected animals; 10.0% (6/60) knew the zoonotic potential of this disease and 1.7% (1/60) of the farmers culled animals in case of recurrence of abscesses. Conclusions- It can be concluded that C. pseudotuberculosis infection is widely spread in sheep flocks in Minas Gerais state in Brazil and that there is a lack of good management measures and vaccination, allowing transmission of this infectious agent throughout the production network.
Thesagro:	Corynebacterium Pseudotuberculosis
NAL Thesaurus:	Caseous lymphadenitis Sheep
Keywords:	Slaughterhouse Minas Gerais
DOI:	https://doi.org/10.1186/1746-6148-7-68
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPGL)