Valorization of Food By-Products: Formulation and Evaluation of a Feed Complement for Broiler Chickens Based on Bonito Fish Meal and Única Potato Peel Flour

Ashley Marianella Espinoza Davila and Rebeca Salvador-Reyes ()
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Ashley Marianella Espinoza Davila: Facultad de Ingeniería, Universidad Tecnológica del Perú, Lima 150101, Peru
Rebeca Salvador-Reyes: Facultad de Ingeniería, Universidad Tecnológica del Perú, Lima 150101, Peru

Resources, 2025, vol. 14, issue 8, 1-15

Abstract: Restaurants and open markets generate considerable quantities of organic waste. Converting these residues into poultry feed ingredients offers a sustainable disposal route. This study aimed to evaluate the nutritional and sensory viability of a novel feed complement formulated from Bonito fish meal ( Sarda chiliensis chiliensis ) and Única potato peel flour ( Solanum tuberosum L. cv. Única). This study was conducted in three phases: (i) production and nutritional characterization of the two by-product flours; (ii) formulation of a 48:52 ( w / w ) blend, incorporated into broiler diets at 15%, 30%, and 45% replacement levels over a 7-week trial divided into starter (3 weeks), grower (3 weeks), and finisher (1 week) phases; and (iii) assessment of growth performance (weight gain, final weight, and feed conversion ratio), followed by a sensory evaluation of the resulting meat using a Check-All-That-Apply (CATA) analysis. The Bonito fish meal exhibited 50.78% protein, while the Única potato peel flour was rich in carbohydrates (74.08%). The final body weights of broiler chickens ranged from 1872.1 to 1886.4 g across treatments, and the average feed conversion ratio across all groups was 0.65. Replacing up to 45% of commercial feed with the formulated complement did not significantly affect growth performance ( p > 0.05). Sensory analysis revealed that meat from chickens receiving 15% and 45% substitution levels was preferred in terms of aroma and taste, whereas the control group was rated higher in appearance. These findings suggest that the formulated feed complement may represent a viable poultry-feed alternative with potential sensory and economic benefits, supporting future circular-economy strategies.

Keywords: animal feed; by-product valorization; circular economy; check-all-that-apply; protein supplement (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jresou:v:14:y:2025:i:8:p:125-:d:1715389

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