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OJVRTM

Online Journal of Veterinary Research© 

Volume 19(7): 465-470, 2015.

Antibiotic susceptibility of Clostridium perfringens  from organic broiler chickens

 

Mojtaba Alimolaei1, 2, Majid Ezatkhah1*, Mehrdad Shamsaddini Bafti1, Maryam Amini1

 

1Razi Vaccine and Serum Research Institute, Kerman branch, 2Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Iran.

 

ABSTRACT

 

Alimolaei M, Ezatkhah M, Shamsaddini Bafti M, Amini M.,  Antibiotic susceptibility of Clostridium perfringens from organic broiler chickens, Onl J Vet Res., 19(7): 465-470, 2015. Forty five C. perfringens isolates from 8 organic broiler farms were tested for antibiotic resistance. Amoxicillin, chloramphenicol and cephalothin were most active against C perfringens.  Resistance to clindamycin, penicillin G, bacitracin, erythromycin, tetracycline and co-trimoxazole ranged 51 to 90%. C perfringes exhibited 27 resistant phenotypes. All isolates, except one, were resistant to two or more antimicrobial agents or 2 isolates (4.44%) and co-trimoxazole/tetracycline were the most frequent resistant phenotypes occurring in 11% of isolates. This level of resistance was puzzling since antibiotics are not usually used in organic broiler farms. Antibiotic resistant Clostridium perfringens may have become ubiquitous in the area.

 

Key words: Antimicrobial susceptibility, Clostridium perfringens, organic chickens.

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