Volltext-Downloads (blau) und Frontdoor-Views (grau)

Nutritional Value of Duckweed as Protein Feed for Broiler Chickens : Digestibility of Crude Protein, Amino Acids and Phosphorus

  • Duckweed is gaining attention in animal nutrition and is considered as a potential alternative protein source for broiler chickens. In order to evaluate the nutritional value of duckweed, three individual batches were investigated. They consisted of a mixture of Lemna minuta and Lemna minor (A, 17.5% crude protein), Spirodela polyrhiza (B, 24.6% crude protein) and Lemna obscura (C, 37.0% crude protein). Treatment diets contained 50% batch A, 50% batch B, and 25, 50 and 75% of batch C. All diets were fed to broiler chickens (Ross 308) from an age of 21 to 27 days. Diets with a share of 50 and 75% of batch C led to decreased feed intake (109.3 and 74.9 g/day, respectively) compared to the control. Standardized ileal digestibility of crude protein and amino acids differed significantly between duckweed batches, at values for methionine between 49.9 and 90.4%. For all amino acids, batch A consistently had the lowest and batch C the highest digestibility. Batches had different tannin contents of 2943, 2890 and 303 mg/kg for batches A, B and C, respectively. The apparent ileal digestibility of phosphorus differed significantly between all batches (50.8–78.9%). Duckweed can be used as a protein feed for broiler chickens. However, a defined and stable biomass composition optimized for the requirements of broiler chickens is needed.

Download full text files

Export metadata

Additional Services

Search Google Scholar


Author:Johannes DemannORCiD, Finn PetersenORCiD, Georg DuselORCiD, Manuela BogORCiD, Reindert DevlamynckORCiD, Andreas UlbrichORCiD, Hans-Werner OlfsORCiD, Heiner Westendarp
Title (English):Nutritional Value of Duckweed as Protein Feed for Broiler Chickens : Digestibility of Crude Protein, Amino Acids and Phosphorus
Parent Title (English):Animals
Document Type:Article
Year of Completion:2023
Release Date:2024/03/11
Tag:Animal performance; Feed intake; Phytate; Tannin; Water binding capacity
Article Number:130
Page Number:11
Faculties:Fakultät AuL
DDC classes:600 Technik, Medizin, angewandte Wissenschaften / 630 Landwirtschaft, Veterinärmedizin
Review Status:Veröffentlichte Fassung/Verlagsversion
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International