Cited by 52Aquaculture Nutrition and GrowthAlgal biology and biofuel productionAquaculture disease management and microbiota

Cell wall disruption: An effective strategy to improve the nutritive quality of microalgae in African catfish ( Clarias gariepinus )

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Agboola, Jeleel O., Teuling, Emma, Wierenga, Peter A., Gruppen, Harry, Schrama, Johan W.·2019·Aquaculture Nutrition

Abstract

The rigid cell walls of microalgae may hinder their utilization in fish feeds. The current experiment assessed the correlation between the accessibility of microalgae nutrients and their in vivo digestibility in African catfish. Nannochloropsis gaditana biomass was subjected to physical or mechanical treatments to weaken its cell wall; untreated—no disruption treatment (UNT), pasteurization (PAS), freezing (FRO), freeze-drying (FRD), cold pasteurization (L40) and bead milling (BEM). Six experimental diets formulated from differently treated and untreated microalgae (at 30% diet inclusion level) were tested on growth performance and apparent nutrient digestibility (ADCs) in juvenile African catfish. A basal diet (REF) containing no microalgae was used as reference diet. Results showed that biomass gain and feed conversion ratio of fish fed L40 and BEM diets increased by 13% and 11%, respectively, relative to the UNT diet. Additionally, FRD, FRO, L40 and BEM cell wall disruption treatments improved protein digestibility by 0.5%, 5.9%, 8.4% and 16.3%, respectively, compared to the UNT treatment. There was a positive correlation between accessibility of microalgal nutrients and their digestibility in African catfish. Nutrient digestibility of microalgae was dependent on extent of cell disruption. Also, the impact of cell disruption on nutrient digestibility of microalgae differs between African catfish and Nile tilapia.

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  1. Promya, J., & Chitmanat, C. (2011). The effects of Spirulina platensis and Cladophora algae on the growth performance, meat quality and immunity stimulating capacity of the African sharptooth catfish (Clarias gariepinus). International Journal of Agriculture and Biology, 13, 77-82.

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Authors
Agboola, J. O., Teuling, E., Wierenga, P. A., Gruppen, H., & Schrama, J. W.
Affiliations
  • WorldFish (MY)
  • Wageningen University & Research (NL)
Corresponding author
Schrama, Johan W.
Venue
Aquaculture Nutrition
Publisher
Wiley
Published
2019-04
Volume
25
Issue
4
Pages
783-797
ISSN
  • 1353-5773 (ISSN-L)
  • 1365-2095
OpenAlex
W2929817405
Cited by
52
References
42
Citations by year
2026: 3 · 2025: 7 · 2024: 5 · 2023: 11 · 2022: 8 · 2021: 8 · 2020: 9 · 2019: 1
FWCI
5.79
Type
journal article
Language
en
Open access
Locations
  • Aquaculture Nutrition (publishedVersion, cc-by-nc-nd)
  • Socio-Environmental Systems Modeling (acceptedVersion, cc-by-nc-nd)
  • Data Archiving and Networked Services (DANS) (submittedVersion, cc-by-nc-nd)
Funders
  • Stichting voor de Technische Wetenschappen
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Immunology and Microbiology › Immunology › Aquaculture disease management and microbiota
Keywords
cell wall damage, microalgae, Clarias gariepinus, Nannochloropsis gaditana, fish feed, nutrient digestibility, protein digestibility, bead milling, cold pasteurization, freeze-drying, freezing, pasteurization, growth performance, feed conversion ratio, Oreochromis niloticus

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