tailieunhanh - Disinfecting poultry production premises

Whilst wild birds may have played a role in the spread of H5N1, they are far from being the main culprits. Following the discovery of H5N1-infected migrating wild birds in Qinghai Lake, China in 2005, migrating wild birds were assumed to be the key responsible agents for carrying the virus across to Europe, Africa and the Middle East. However, the geographic spread of the disease correlates with major road and rail routes rather than migratory routes or seasons (The Lancet Infectious Diseases 2006). Furthermore, recent molecular and phylogenetic analysis of H5N1 has found that different geographical regions have. | Rev. sci. tech. Off. int. Epi . 1995 14 2 273-291 Disinfecting poultry production premises M. MEROZ and Y. SAMBERG Summary Hygiene and sanitation play a major role in any effective disease control programme for poultry production premises. One of the important requirements io facilitate hygiene and sanitation is adoption of the all-in all-out method . all the birds within a single establishment should be of the same age group together with the restriction of each enterprise to a single type or species of bird. Poultry premises and buildings should comply with requirements for isolation from the environment and strict observance of principles of hygiene and disease prevention . restrictions on movement of staff equipment and vehicles . A poultry site must be prepared methodically for the entry of each new batch removal of birds litter and manure vector and rodent control dry and wet cleaning disinfection fumigation . Attention should be paid to the terminal sanitation of houses and equipment after depopulation physical and chemical cleaning pressure washing disinfection fumigation . Particular care should be exercised in the performance of sanitary procedures after a disease outbreak. Immediate disposal of dead and diseased birds is an important and effective tool in preventing the dissemination of any disease. Disposal methods include the use of burial pits tanks burial in trenches burning rendering and composting. Regular visual inspection together with routine testing by microbiological monitoring methods is very effective in checking the efficacy of cleaning and disinfection. KEYWORDS Carcass disposal - Cleaning - Disinfection - Management -Monitoring - Poultry premises - Sanitation. INTRODUCTION No amount of drugs antibiotics or vaccines will permanently solve disease problems on a farm or in a hatchery if sanitation is a secondary consideration. No poultry producer would consider a disease prevention programme to be complete without a comprehensive plan

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