1. Poultry Slaughter - Summary 2011;USDA, National Agricultural Statistics Service,2012
2. Duck husbandry and welfare = one;Joy;World's Poultry,2005
3. Council of Europe 1999 Standing Committee of the European convention for the protection of animals kept for farming purposes. Recommendations concerning Muscovy Ducks (Cairina moschata) and hybrids of Muscovy and Domestic ducks (Anas plalyrhynchos) adopted by the Standing Committee on 22 June 1999. http://www.coe.int/t/e/legal_affairs/legal_co-operation/biological_safety_use_of_animals/farming/Rec%20Muscovy%20E%201999.asp Accessed Jul 2013
4. Behaviour and welfare in relation to pathology;Broom;Appl. Anim. Behav. Sci.,2006
5. Footpad dermatitis in poultry;Shepherd;Poult. Sci.,2010