Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs

Abstract Background Porcine pleuropneumonia, caused by Actinobacillus pleuropneumoniae, is a bacterial respiratory disease of swine. Acute outbreaks of the disease are often accompanied by high mortality and economic losses. As severe cases of the disease frequently require parenteral antibiotic tre...

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Main Authors: Doris Hoeltig, Judith Rohde, Birgit Brunner, Klaus Hellmann, Erik Grandemange, Karl-Heinz Waldmann
Format: Article
Language:English
Published: BMC 2018-06-01
Series:Porcine Health Management
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40813-018-0089-2
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author Doris Hoeltig
Judith Rohde
Birgit Brunner
Klaus Hellmann
Erik Grandemange
Karl-Heinz Waldmann
author_facet Doris Hoeltig
Judith Rohde
Birgit Brunner
Klaus Hellmann
Erik Grandemange
Karl-Heinz Waldmann
author_sort Doris Hoeltig
collection DOAJ
description Abstract Background Porcine pleuropneumonia, caused by Actinobacillus pleuropneumoniae, is a bacterial respiratory disease of swine. Acute outbreaks of the disease are often accompanied by high mortality and economic losses. As severe cases of the disease frequently require parenteral antibiotic treatment of the animals, the efficacy of a single, high dose of marbofloxacin was compared to a three-time application of a dose of enrofloxacin under experimental conditions. Methods A blinded, controlled, randomized and blocked dose confirmation study was conducted to test the efficacy and safety of a single dose of 8 mg/kg marbofloxacin (160 mg/ml, Forcyl® Swine, Vetoquinol SA, France) to treat acute porcine pleuropneumonia after experimental aerosol inoculation of pigs with A. pleuropneumoniae serotype 2. The results were compared to a three consecutive day treatment of 2.5 mg/kg enrofloxacin and a mock (saline) treatment. Criteria for the assessment of efficacy were severity of lung lesions, bacteriological cure and the course of clinical disease after treatment. Results: Thirty six nursery pigs were divided into three treatment groups: marbofloxacin (T1), enrofloxacin (T2) and mock (T3). Statistically significant superiority (p < 0.05) of marbofloxacin and enrofloxacin compared to the mock-treated group was demonstrated for all efficacy criteria. The need of rescue euthanasia due to severity of symptoms was significantly reduced in both treatment groups (T1: 1 pig; T2: 0 pigs; vs. T3: 8 pigs). On day 6 after treatment initiation, clinical cure was observed in 10 (T1), 10 (T2) but only 1 of the piglets in T3. Extent of lung lesions (mean of lung lesion score T1: 3.9, T2: 6.0, T3: 21.1) and bacteriological isolation from lung tissue (on day 6 after treatment initiation: T1 = 0 pigs; T2 = 1 pig; T3 = all pigs) were also significantly reduced within both treatment groups. There were no adverse events linked to the drug administration and no injection site reactions were observed. Conclusions Both applied antimicrobial treatments were proven safe and efficacious for the treatment of acute porcine pleuropneumonia. No statistically significant differences were detected between the antibiotic treatments.
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spelling doaj.art-059de94b36004a9bb806d155a99c3dd72022-12-22T00:23:01ZengBMCPorcine Health Management2055-56602018-06-014111010.1186/s40813-018-0089-2Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigsDoris Hoeltig0Judith Rohde1Birgit Brunner2Klaus Hellmann3Erik Grandemange4Karl-Heinz Waldmann5Clinic for Swine, Small Ruminants, forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, FoundationInstitute for Microbiology, University of Veterinary Medicine Hannover, FoundationKlifovet AGKlifovet AGVetoquinol SA, Research and Development CentreClinic for Swine, Small Ruminants, forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, FoundationAbstract Background Porcine pleuropneumonia, caused by Actinobacillus pleuropneumoniae, is a bacterial respiratory disease of swine. Acute outbreaks of the disease are often accompanied by high mortality and economic losses. As severe cases of the disease frequently require parenteral antibiotic treatment of the animals, the efficacy of a single, high dose of marbofloxacin was compared to a three-time application of a dose of enrofloxacin under experimental conditions. Methods A blinded, controlled, randomized and blocked dose confirmation study was conducted to test the efficacy and safety of a single dose of 8 mg/kg marbofloxacin (160 mg/ml, Forcyl® Swine, Vetoquinol SA, France) to treat acute porcine pleuropneumonia after experimental aerosol inoculation of pigs with A. pleuropneumoniae serotype 2. The results were compared to a three consecutive day treatment of 2.5 mg/kg enrofloxacin and a mock (saline) treatment. Criteria for the assessment of efficacy were severity of lung lesions, bacteriological cure and the course of clinical disease after treatment. Results: Thirty six nursery pigs were divided into three treatment groups: marbofloxacin (T1), enrofloxacin (T2) and mock (T3). Statistically significant superiority (p < 0.05) of marbofloxacin and enrofloxacin compared to the mock-treated group was demonstrated for all efficacy criteria. The need of rescue euthanasia due to severity of symptoms was significantly reduced in both treatment groups (T1: 1 pig; T2: 0 pigs; vs. T3: 8 pigs). On day 6 after treatment initiation, clinical cure was observed in 10 (T1), 10 (T2) but only 1 of the piglets in T3. Extent of lung lesions (mean of lung lesion score T1: 3.9, T2: 6.0, T3: 21.1) and bacteriological isolation from lung tissue (on day 6 after treatment initiation: T1 = 0 pigs; T2 = 1 pig; T3 = all pigs) were also significantly reduced within both treatment groups. There were no adverse events linked to the drug administration and no injection site reactions were observed. Conclusions Both applied antimicrobial treatments were proven safe and efficacious for the treatment of acute porcine pleuropneumonia. No statistically significant differences were detected between the antibiotic treatments.http://link.springer.com/article/10.1186/s40813-018-0089-2EnrofloxacinMarbofloxacinRespiratory diseaseSwineBacteriological cureFluoroquinolone
spellingShingle Doris Hoeltig
Judith Rohde
Birgit Brunner
Klaus Hellmann
Erik Grandemange
Karl-Heinz Waldmann
Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
Porcine Health Management
Enrofloxacin
Marbofloxacin
Respiratory disease
Swine
Bacteriological cure
Fluoroquinolone
title Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
title_full Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
title_fullStr Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
title_full_unstemmed Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
title_short Efficacy of a one-shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
title_sort efficacy of a one shot marbofloxacin treatment on acute pleuropneumonia after experimental aerosol inoculation of nursery pigs
topic Enrofloxacin
Marbofloxacin
Respiratory disease
Swine
Bacteriological cure
Fluoroquinolone
url http://link.springer.com/article/10.1186/s40813-018-0089-2
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