 A practical approach to determining apparent fecal digestibility using privately owned dogs may be a useful tool in evaluating differences in nutrient digestibility between dogs with different life stages. This approach involves providing a commercial dry extruded diet supplemented with a commercially available titanium dioxide, TiO2, containing kibble to privately owned dogs, followed by collection of feces over a period of time and storage at minus 20 degrees Celsius. Analysis of these feces can then be used to calculate the apparent digestibility of dietary nutrients. This approach has been shown to be effective in assessing the digestibility of dietary nutrients in dogs, with no significant differences being observed in digestibility due to age, gender or nutrient status. However, owner compliance is a potential limitation of this approach. This article was offered by Esther A. Hagen-Plantinger, Guido Bosch and Walter H. Hendricks.