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ARS Home » Pacific West Area » Albany, California » Western Regional Research Center » Bioproducts Research » Research » Publications at this Location » Publication #390802
Research Project: Bioproducts and Biopolymers from Agricultural Feedstocks

Location: Bioproducts Research

Title: Animal feed production and analysis from egg and almond hull agricultural waste

Author
item KUNDMANN, ANNA - Former ARS Employee
item FLYNN, ALLISON - Former ARS Employee
item Wood, Delilah
item Orts, William
item Hart-Cooper, William

Submitted to: Journal of Applied Animal Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/4/2024
Publication Date: 11/18/2024
Citation: Kundmann, A.C., Flynn, A., Wood, D.F., Orts, W.J., Hart-Cooper, W.M. 2024. Animal feed production and analysis from egg and almond hull agricultural waste. Journal of Applied Animal Research. 52(1). Article 2426984. https://doi.org/10.1080/09712119.2024.2426984.
DOI: https://doi.org/10.1080/09712119.2024.2426984

Interpretive Summary: Food and agricultural waste contribute to resource depletion, waste accumulation and climate change. ACCOMPLISHMENT: We developed extrusion processing blends containing waste liquid egg and almond hulls as a high value animal feed. Compositions showed favorable processing, protein content comparable to grain silages and relatively low neutral detergent fiber. This work provides a method for repurposing high moisture, high protein food waste into animal feed using abundant, low-cost almond crop residues and demonstrates the feasibility of creating an animal feed from liquid egg waste and almond hulls.

Technical Abstract: Food and agricultural waste contribute to resource depletion, waste accumulation and climate change. Chicken egg and almond hull waste streams have favorable nutritional profiles but are underexplored for environmentally friendly livestock feed applications. We report extrusion processing and nutritional analysis of blends containing liquid egg and almond hulls. Compositions showed favorable processing, protein content comparable to grain silages and relatively low neutral detergent fiber. Bacterial proliferation in extrudates was minimal. This work provides a method for repurposing high moisture, high protein food waste into animal feed using abundant, low-cost almond crop residues and demonstrates the feasibility of creating an animal feed from liquid egg waste and almond hulls.