CÉRÉALES ALIMENTAIRES POUR ANIMAUX DE COMPAGNIE, PROCÉDÉ DE FABRICATION DESDITES CÉRÉALES ALIMENTAIRES, DISPOSITIF DE FABRICATION DESDITES CÉRÉALES ALIMENTAIRES ET ALIMENT POUR ANIMAUX DE COMPAGNIE
Provided are pet food grains for reducing regurgitation after a meal, containing: puffed grains having a moisture content of 3% to 12% by mass, in which a proportion of grains, each of which has a surface with an arithmetic average surface roughness Sa of 14 µm or greater which is measured using an L-filter having a nesting index of 0.25 mm, is 60% or greater, and a proportion of grains whose hardness immediately after being immersed in dilute hydrochloric acid (pH of 2.5) at 25°C for 10 minutes is 2.5 kgw or less is 60% or greater.