A Study of the Economic Losses Due to Bovine Paratuberculosis in Two Herds Around Tehran

Authors

  • M. Gh. Nadalian Department of Clinical Sciences, Faculty of Veterinary Medicine. University of Tehran, Tehran, Iran

DOI:

https://doi.org/10.21423/aabppro20015261

Keywords:

Paratuberculosis, Johne's disease, diarrhea, emaciation, submandibular edema, Economic losses, milk production, Mastitis, infertility

Abstract

Paratuberculosis (Johne's disease) is a chronic, granulomatous enteritis and a contagious bacterial disease of the intestinal tract. Johne's disease is characterized by delayed onset and variable expression of clinical signs, including intermittent diarrhea, emaciation and sometimes submandibular edema.

Economic losses associated with Johne's disease relate to many factors, including decreased milk production and weight, increased susceptibility to other diseases, loss of genetic potential and export market and increased calving interval. Mastitis and infertility in infected cattle also are higher than in non-infected cattle but results are inconsistent. Total losses were estimated to exceed $105 billion annually for the dairy industry in the United States.4,5

Cover image of the 34th Conference Proceedings: Four men on horseback lead a single cow through a pen. Yellow background.

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Published

2001-09-13

Issue

2001

Section

Posters

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