Efficacy of sarafloxacin in broilers after experimental infection with Escherichia coli.

Abstract

Infections of chickens with Escherichia coli serotype O78 can be treated with the antibiotic sarafloxacin. Three experiments were conducted on the administration of this drug to chickens that had been experimentally infected with E. coli. The birds were monitored for 10 days after infection for their average daily gain (ADG) and feed conversion ratio (FCR), and the post-mortem pathology was assessed. In the first experiment, sarafloxacin (20 mg/L, equivalent to 5 mg/kg live weight per day), given in the drinking water for 3 days after infection, led to a reduction in the mortality from 75% to 27%, but the ADG of the treated birds was still less than that of the uninfected controls. In the second experiment, when the sarafloxacin was administered at the same dose in the water but over only 2 h, there was also a considerable reduction in mortality, and the ADG and the FCR also improved significantly. In the third experiment, the dose dependence of the drug was tested. The birds were given 5 and 10 mg/kg per day sarafloxacin in each group, starting within 2 h after infection. This rapid administration of the drug completely prevented mortality, while the ADG and FCR were similar to those of the uninfected controls.

• Authors: N Chansiripornchai, J Sasipreeyajan
• Journal: Veterinary research communications (Vet Res Commun) Vol. 26 Issue 4 Pg. 255-62 (Jun 2002) ISSN: 0165-7380 [Print] Netherlands
• PMID: 12184496 (Publication Type: Clinical Trial, Journal Article)

Chemical References

• Anti-Infective Agents
• Fluoroquinolones
• Ciprofloxacin
• sarafloxacin

Topics

• Animals
• Anti-Infective Agents (administration & dosage, therapeutic use)
• Body Weight
• Chickens (microbiology)
• Ciprofloxacin (administration & dosage, analogs & derivatives, therapeutic use)
• Dose-Response Relationship, Drug
• Drug Administration Schedule
• Escherichia coli Infections (drug therapy, mortality, veterinary)
• Female
• Fluoroquinolones
• Male
• Poultry Diseases (drug therapy, mortality)