1. Susceptibility of different bacterial species isolated from food animals to copper sulphate, zinc chloride and antimicrobial substances used for disinfection
2. Anonymous 2007 . Communication from the Commission of the European Communities to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions on a new Animal Health Strategy for the European Union (2007–2013) where “Prevention is better than cure”. COM(2007) 539 final. Eur-Lex . Available online athttp://eur-lex.europa.eu(accessed 14 June 2010) .
3. Anonymous 2008 . Guide of good hygiene practice for the prevention and control of microbiological infections focussed on Salmonella control of chickens reared for meat. AVEC (Association of Poultry Processors and Poultry Trade in the EU) & COPA-COGECA (Committee of Professional Agricultural Organisations in the European Union/General Confederation of Agricultural Co-operatives in the European Union) . Available online atwww.food.gov.uk/multimedia/pdfs/comguidsalmonella.pdf(accessed 14 June 2010) .
4. Anonymous 2010 . Community guide for good hygiene practices in pullet rearing and egg laying flocks. EUWEP (European Union of Wholesale with Eggs Egg Products Poultry and Game) & COPA-COGECA (Committee of Professional Agricultural Organisations in the European Union/General Confederation of Agricultural Co-operatives in the European Union) . Available online athttp://ec.europa.eu/food/food/biosafety/salmonella/docs/community_guide_layers_hygiene_practice_pullet_egg_en.pdf(accessed 3 December 2010) .
5. The effect of practical conditions on the efficacy of disinfectants