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Salmonellosis represents the most prevalent zoonotic infection of Bovidae. Approximately 111 of the over 1700 salmonellae serotypes have been found in cattle (1). Eighty-one types of Salmonella have been cultured from cattle in the U.S. (1). It may be assumed that the bovine animal is potentially susceptible to all the salmonellae which colonize lower animals. A summary of the predominant serotypes found in U.S. cattle is given in Table 1.

The changes in the procedure include the instillation of mineral oil directly into the abomasum and the fixation of the abomasum to the ventral body wall. The fixation sutures are left in place for at least two weeks when they are cut at both emerging points but are not pulled out for fear of damaging the abomasal wall.

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