Bovine diarrhea associated with Campylobacter hyointestinalis

Area of Science:

• Veterinary Medicine
• Microbiology
• Animal Health

Background:

• Enteric diseases pose a significant threat to ruminant calf health.
• Nonspecific gastrointestinal symptoms like diarrhea and wasting can indicate various underlying pathogens.
• Campylobacter species are known causes of enteric infections in livestock.

Purpose of the Study:

• To identify the causative agent of an enteric disease in ruminating calves.
• To characterize the clinical presentation and serological response to the identified pathogen.
• To evaluate the efficacy of chloramphenicol treatment for this specific condition.

Main Methods:

• Clinical observation of 16 affected ruminating calves.
• Isolation and identification of Campylobacter hyointestinalis from fecal samples.
• Serological testing to determine antibody titers against C. hyointestinalis.
• Treatment of affected calves with chloramphenicol.

Main Results:

• A mild to severe, nonspecific diarrhea and wasting characterized the disease.
• Campylobacter hyointestinalis was isolated from 12 out of 14 affected calves.
• Antibody titers to C. hyointestinalis ranged from 1:20 to 1:160 in affected animals.
• Two calves succumbed to the disease despite intervention.

Conclusions:

• Campylobacter hyointestinalis is identified as a likely causative agent of this enteric disease in calves.
• The disease presents with significant gastrointestinal distress and can be fatal.
• Chloramphenicol demonstrated successful therapeutic outcomes.