Experiences in Formulating Insect-Based Feeds: Selected Physicochemical Properties of Dog Food Containing Yellow Mealworm Meal

This study examined the nutritional composition and mechanical properties of five dog food formulas containing different amounts (25%, 30%, 35%, 40%, 45%) of yellow meal-worm (Tenebrio molitor) meal. The aim of the study was to assess the applicability of insect protein for formulating hypoallergenic dog food that aligns with modern sustainability goals. Nutritional analyses revealed that protein levels remained stable in all formulas, whereas fat, ash, and fiber concentrations increased, and carbohydrate levels decreased with a rise in the content of T. molitor meal. The fatty acid profile of the formulas im-proved due to higher concentrations of beneficial omega-6 and omega-3 fatty acids. Amino acid profiles remained generally stable, although a slight decrease in lysine and methionine concentrations was observed with an increase in insect meal levels. Mechan-ical tests demonstrated that higher T. molitor content resulted in softer and more de-formable granules. Overall, these findings indicate that T. molitor meal is a sustainable and nutritious ingredient of dog food, but careful balancing is needed to optimize essen-tial nutrient profiles.