1. Pet food production data show how and where market is growinghttp://www.petfoodindustry.com/Blog_Posts/Debbie_Phillips-Donaldson/Petfood_production_data_show_how_and_where_market_is_growing.html
2. https://www.avma.org/KB/Resources/Statistics/Pages/Market-research-statistics-US-Pet-Ownership-Demographics-Sourcebook.aspx
3. Innovation in pet nutrition and ingredientshttp://www.petfoodindustry.com/Innovation_in_pet_nutrition_and_ingredients.html
4. Palatability Testing: Parameters and Analyses that Influence Test Conclusions;Griffin,2003
5. Optimizing the sensory characteristics and acceptance of canned cat food: use of a human taste panel