Gravimetric feeding preferable because of variation in flow propertiesTesting of pet food and salmon feed was done to argue why a gravimetric feeding system is preferable when working with mixed meal types.
Investigation density and flow properties
Variations in both density and flow property often occur in mixed meal types used for the animal, aqua and pet food productions, density variations above 15 % are not unusual – these variations possibly occur due to variations in the recipe and since meal can compact in bins. This article focuses on the differences in meal mixes for pet food and aqua feed production and what type of knowledge testing the product will generate. Testing of two material types: pet food – dog and aqua feed – salmon was done to argue why a gravimetric feeding system is preferable when working with mixed meal types
Testing and Results
Four types of tests were performed in the Jesma test laboratory: bulk density, angle of repose, particle size, and moisture content. Bulk density can interfere with powder flow, large variations between loose and tapped bulk density may signify a poorer flowing material. Using the compressibility index for