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Demann, Johannes [Verfasser:in]; Petersen, Finn [Verfasser:in]; Dusel, Georg [Verfasser:in]; Bog, Manuela [Verfasser:in]; Devlamynck, Reindert [Verfasser:in]; Ulbrich, Andreas [Verfasser:in]; Olfs, Hans-Werner [Verfasser:in]; Westendarp, Heiner [Verfasser:in]

Nutritional value of duckweed as protein feed for broiler chickens

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  • Medientyp: E-Book
  • Titel: Nutritional value of duckweed as protein feed for broiler chickens : digestibility of crude protein, amino acids and phosphorus
  • Beteiligte: Demann, Johannes [Verfasser:in]; Petersen, Finn [Verfasser:in]; Dusel, Georg [Verfasser:in]; Bog, Manuela [Verfasser:in]; Devlamynck, Reindert [Verfasser:in]; Ulbrich, Andreas [Verfasser:in]; Olfs, Hans-Werner [Verfasser:in]; Westendarp, Heiner [Verfasser:in]
  • Erschienen: Osnabrück: Hochschule Osnabrück, 2023
  • Umfang: 1 Online-Ressource
  • Sprache: Englisch
  • DOI: 10.3390/ani13010130
  • Identifikator:
  • Entstehung:
  • Anmerkungen: Aus: Animals 13.2023, H. 1, Aufsatznummer 130
  • Beschreibung: 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.
  • Zugangsstatus: Freier Zugang