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  • Title: The relationship between the presence of Helicobacter pylori, Clostridium perfringens type A, Campylobacter spp, or fungi and fatal abomasal ulcers in unweaned beef calves.
    Author: Jelinski MD, Ribble CS, Chirino-Trejo M, Clark EG, Janzen ED.
    Journal: Can Vet J; 1995 Jun; 36(6):379-82. PubMed ID: 7648542.
    Abstract:
    A case-control study involving 30 unweaned beef calves was conducted to determine whether specific species of bacteria or fungi were associated with fatal abomasal ulcer formation. Special microbiological and histological techniques were used to detect Clostridium perfringens type A, Helicobacter pylori, or Campylobacter spp. It has been speculated that these bacteria are potential ulcerogenic agents of unweaned beef calves. Calves were recruited for the study at necropsy, with those dying of either a perforating or a hemorrhagic ulcer representing the cases, and calves of a similar age dying of a disease unrelated to the abomasum representing the controls. Helicobacter pylori was not visualized in or cultured from any of the abomasal tissue samples. Clostridium perfringens type A was isolated from 78.6% of the cases and 75% of the controls. These isolates were further dichotomized into "heavy" and "light" growth; no significant association was found between ulcers and the amount of growth. A light growth of Campylobacter spp. was recovered from 3 cases and 3 controls. There was no compelling evidence to suggest that Clostridium perfringens type A, Helicobacter pylori, or Campylobacter spp. were involved in ulcer formation.
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