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Isolation of Eubacterium suis from sows with cystitis.
1Department of Microbiology, College of Veterinary Medicine, North Carolina State University, Raleigh 27606.
Eubacterium suis, a bacterium causing cystitis in sows, was found in 4.7% of examined animals. Its prevalence may be underestimated due to specific culture needs, impacting swine health.
Area of Science:
- Veterinary Microbiology
- Swine Pathology
- Bacterial Infections
Background:
- Eubacterium suis is a bacterium implicated in cystitis in sows.
- Previous reports on Eubacterium suis infections in swine are limited, particularly in the United States.
- The specific growth requirements of Eubacterium suis may contribute to underdiagnosis.
Purpose of the Study:
- To investigate the prevalence of Eubacterium suis in sow bladders at slaughter.
- To document the clinical and pathological findings associated with Eubacterium suis recovery.
- To assess the potential underestimation of Eubacterium suis cystitis.
Main Methods:
- Bacteriological examination of sow bladders from 64 animals at slaughter.
- Histopathological evaluation of bladder tissues for evidence of cystitis.
- Identification and characterization of co-infecting bacteria.
Main Results:
- Eubacterium suis was isolated from 3 out of 64 sows (4.7%).
- Two sows exhibited cystitis consistent with Eubacterium suis infection; one showed no histologic evidence of cystitis.
- Mixed bacterial infections were present in all three cases, predominantly with gram-positive organisms.
Conclusions:
- Eubacterium suis cystitis in sows may be more common than previously thought.
- The specialized culture techniques required for Eubacterium suis could explain its infrequent detection.
- Further investigation into diagnostic methods and prevalence is warranted for swine health management.
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