The Nutritional Value Adequacy and Microbiological Quality of Canned Foods for Puppies and Adult Dogs

Abstract

The pet food industry’s growth, driven by increased demand for premium options, emphasizes the popularity of canned dog foods due to their palatability and convenience. This study evaluates the nutritional and microbiological quality of canned dog food for puppies and adult dogs, with and without grains, immediately after opening and following 24 h of incubation simulating home storage conditions. The grain-free products exhibited higher protein and energy levels, while the grain-included products contained more ether extract, crude ash, and nitrogen-free extract. Age-specific differences revealed higher ether extract, crude ash, crude fiber, and energy in growing dog foods and more nitrogen-free extract in adult dog foods. Discrepancies between labeled nutrient values and laboratory results indicated overstatements for ether extract and underestimations for protein and crude ash. A microbiological analysis showed that the canned dog foods were generally safe when opened, but after 24 h, 85% exhibited bacterial presence, emphasizing the need for rigorous evaluation. A statistical analysis did not confirm associations between grain presence or age group and microbiological contamination. This study underscores the importance of accurate labeling for nutritional value and emphasizes the need for microbiological safety evaluations, especially in regions lacking specific regulatory standards, to ensure pet food safety and nutritional adequacy.