Journal article
Studies on Calf Diarrhoea in Mozambique: Prevalence of Bacterial Pathogens
Acta Veterinaria Scandinavica, Vol.45, pp.27-36
2004
Abstract
The prevalence of diarrhoea in calves was investigated in 8 dairy farms in Mozambique at 4 occasions during 2 consecutive years. A total of 1241 calves up to 6 months of age were reared in the farms, and 63 (5%) of them had signs of diarrhoea. Two farms had an overall higher prevalence (13% and 21%) of diarrhoea. Faecal samples were collected from all diarrhoeal calves (n = 63) and from 330 healthy calves and analysed for Salmonella species, Campylobacter jejuni and enterotoxigenic Escherichia coli (ETEC). Salmonella spp. was isolated in only 2% of all calves. Campylobacter was isolated in 11% of all calves, irrespective of health condition, and was more frequent (25%) in one of the 2 diarrhoeal farms (p = 0.001). 80% of the isolates were identified as C. jejuni. No ETEC strains were detected among the 55 tested strains from diarrhoeal calves, but 22/55 (40%) strains from diarrhoeal calves and 14/88 (16%) strains from healthy calves carried the K99 adhesin (p = 0.001). 6,757 E. coli isolates were typed with a biochemical fingerprinting method (the PhenePlateâ„¢) giving the same E. coli diversity in healthy and diarrhoeal calves. Thus it was concluded: i) the overall prevalence of diarrhoea was low, but 2 farms had a higher prevalence that could be due to an outbreak situation, ii) Salmonella did not seem to be associated with diarrhoea, iii) Campylobacter jejuni was common at one of the 2 diarrhoeal farms and iv) ETEC strains were not found, but K99 antigen was more prevalent in E. coli strains from diarrhoeal calves than from healthy, as well as more prevalent in one diarrhoeal farm.
Details
- Title
- Studies on Calf Diarrhoea in Mozambique: Prevalence of Bacterial Pathogens
- Authors
- S J Acha (Author) - National Veterinary Research Institute, MozambiqueI Kuhn (Author) - Karolinska Institute, SwedenP Jonsson (Author) - County Administration, Nykoping, SwedenG Mbazima (Author) - National Veterinary Research Institute, MozambiqueMohammad Katouli (Author) - University of the Sunshine Coast - Faculty of Science, Health and EducationR Mollby (Author) - Karolinska Institute, Mozambique
- Publication details
- Acta Veterinaria Scandinavica, Vol.45, pp.27-36
- Publisher
- Den Danske Dyrlaegeforening [The Danish Veterinary Association]
- Date published
- 2004
- DOI
- 10.1186/1751-0147-45-27
- ISSN
- 0044-605X
- Copyright note
- Copyright © 2004 Acha et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Organisation Unit
- University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; School of Health and Sport Sciences - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99448627302621
- Output Type
- Journal article
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