Cluster randomised trial of the impact of biosecurity measures on poultry health in backyard flocks

In Cambodia, most poultry are raised in backyard flocks with a low level of biosecurity, which increases the risk of spread of infectious diseases. The aim of this study was to evaluate the effectiveness of a practical biosecurity intervention based on affordable basic measures. A cluster randomised...

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Bibliographic Details
Published in:The veterinary journal (1997) 2013-12, Vol.198 (3), p.649-655
Main Authors: Conan, Anne, Goutard, Flavie Luce, Holl, Davun, Ra, Sok, Ponsich, Aurélia, Tarantola, Arnaud, Sorn, San, Vong, Sirenda
Format: Article
Language:English
Subjects:
Animal Husbandry
Animal Husbandry - methods
Animals
Avian influenza virus
Backyard poultry
Biosecurity
Cambodia
Cambodia - epidemiology
Chickens
Cluster randomised trial
Communicable Disease Control
Communicable Disease Control - methods
Ducks
Human health and pathology
Infectious diseases
Influenza A Virus, H5N1 Subtype
Influenza A Virus, H5N1 Subtype - isolation & purification
Influenza in Birds
Influenza in Birds - epidemiology
Influenza in Birds - prevention & control
Influenza in Birds - transmission
Influenza in Birds - virology
Life Sciences
Newcastle Disease
Newcastle Disease - epidemiology
Newcastle Disease - prevention & control
Newcastle Disease - transmission
Newcastle Disease - virology
Newcastle disease virus
Newcastle disease virus - isolation & purification
Poultry Diseases
Poultry Diseases - epidemiology
Poultry Diseases - prevention & control
Poultry Diseases - transmission
Poultry Diseases - virology
Random Allocation
Seroepidemiologic Studies
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Summary:In Cambodia, most poultry are raised in backyard flocks with a low level of biosecurity, which increases the risk of spread of infectious diseases. The aim of this study was to evaluate the effectiveness of a practical biosecurity intervention based on affordable basic measures. A cluster randomised trial was conducted in 18 villages in Cambodia from November 2009 to February 2011. Generalised estimating equations were used to test the association between the intervention and mortality rates in flocks of chickens and ducks. Mortality rates in chicken flocks in intervention villages (mean 6.3%, range 3.5–13.8%, per month) were significantly higher than in control villages (mean 4.5%, range 2.0–9.7%, per month; P
ISSN:1090-0233
1532-2971
DOI:10.1016/j.tvjl.2013.09.010