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OJVRTM

Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994

ISSN 1328-925X

 

Volume 29 (5): 320-328, 2025.


Susceptibility of Campylobacter coli isolates from sows and piglets.

 

Sheffield CL, Hume ME, Droleskey RE, Harvey RB, Bischoff KM.

 

USDA, ARS, Southern Plains Agriculture Research Center, Food and Feed Safety Research Unit, College Station, Texas, USA.

 

ABSTRACT

 

Sheffield CL, Hume ME, Droleskey RE, Harvey RB, Bischoff KM. Susceptibility of Campylobacter coli isolates from sows and piglets. Onl J Vet Res., 29 (5): 320-328, 2025. We report dendogram and antimicrobial susceptibility profiles of 104 Campylobacter coli isolates from feces of 3 sows and rectal swabs of 18 piglets housed in the same facility. C. coli isolates segregated into 20 ribogroups and exhibited 22 antibiotic susceptibility profiles. 43% isolates were represented by 1 ribogroup, 24% by 2 and 33% by 3 or more.   No link was observed between Campylobacter ribogroups from sows or offspring. Ribogroups analyzed by unweighted pairs arithmetic averages revealed 4 main clusters with 76-85% similarity in 19 ribogroups. All isolates were resistance to lincomycin and tobramycin, but sensitive to erythromycin. We found resistance to neomycin in 96%, ampicillin 91, tetracycline 80, gentamycin 44, amikacin 10, and clindamycin 6% isolates whereas 91% were sensitive to ciprofloxacin, 84 amikacin, 75 tetracycline, 13 clindamycin, and 2% to ampicillin.  Results suggest a high level of both ribotypic and antimicrobial susceptibility diversity within C. coli  isolates from both related and non-related pigs housed in a single facility.

 

KEY WORDS:  Campylobacter, swine, ribotypes, antimicrobial sensitivity.


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