Original Paper

Tropical Animal Health and Production

, Volume 41, Issue 4, pp 553-557

Risk factors for Mycobacterium avium subspecies paratuberculosis in Fars province (Southern Iran) dairy herds

  • Maryam Ansari-LariAffiliated withDepartment of Food Hygiene and Public Health, School of Veterinary Medicine, Shiraz University Email author 
  • , Masoud HaghkhahAffiliated withDepartment of Pathobiology, School of Veterinary Medicine, Shiraz University
  • , Ayatollah BahramyAffiliated withDepartment of Pathobiology, School of Veterinary Medicine, Shiraz University
  • , Amir Mansour Novin BaheranAffiliated withDepartment of Pathobiology, School of Veterinary Medicine, Shiraz University

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Abstract

A cross-sectional study was conducted from March to August 2006 in dairy herds in Fars province, southern Iran to determine the herd-level risk factors for infection with Mycobacterium avium subspecies paratuberculosis (MAP). Statistical analysis using multivariable logistic regression showed that contamination of udders of periparturient cows with manure (OR = 6.4, P = 0.02) and history of having suspected cases of Johne's disease in the herd (OR = 6.7, P = 0.04) were significantly associated with the herd infection status. No relationship between breed, herd size and other management practices with the infection status of the herd were found in this study. Implementing high sanitary measures in the farm, particularly with respect to manure handling and cleaning could be considered as one of the important aspects in controlling disease in the region as well as in the future educational effort.

Keywords

Iran Johne’s disease Mycobacterium avium subspecies paratuberculosis Risk factor