Effect of cell wall characteristics on algae nutrient digestibility in Nile tilapia (Oreochromis niloticus) and African catfish (Clarus gariepinus)

Teuling, Emma; Schrama, J.W.; Gruppen, Harry; Wierenga, Peter A.

doi:10.1016/j.aquaculture.2017.06.025

Cited by 73 publications

(70 citation statements)

References 39 publications

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“…D‐glucose was used for calibration and standardized regular maize starch as a control. Neutral carbohydrate composition was determined in duplicate based on the alditol acetates procedure, as previously described by Teuling et al (). The monosugar constituents of the total carbohydrates were expressed in anhydrous form.…”

Section: Methodsmentioning

confidence: 99%

“…The monosugar constituents of the total carbohydrates were expressed in anhydrous form. Total uronic acid content was determined according to an automated colorimetric m‐hydroxydiphenyl assay, which was described by Teuling et al (). All chemical analyses were performed in triplicate unless otherwise stated.…”

Section: Methodsmentioning

confidence: 99%

“…and Scenedesmus sp . were reported to be 81%, 80%, 72% and 67%, respectively, in both Nile tilapia and African catfish (Teuling et al, ). The lower ADCs reported for Nannochloropsis sp .…”

Section: Introductionmentioning

confidence: 99%

“…Microalgae, one of the novel feed ingredients, have been studied during the larvae stages (Eryalçın, Ganuza, Atalah, & Cruz, ; Rocha, Ribeiro, Costa, & Dinis, ) and during the grow‐out phases of fish (Gong, Guterres, Huntley, Sørensen, & Kiron, ; Sarker, Gamble, Kelson, & Kapuscinski, ; Teuling, Schrama, Gruppen, & Wierenga, ). In digestion trials for fish, microalgae are often fed in intact forms (Nandeesha, Gangadhara, Manissery, & Venkataraman, ; Sørensen, Berge, Reitan, & Ruyter, ; Teuling et al, ; Tibaldi et al, ). However, for intact algae, the cell walls may be an important factor limiting the digestibility.…”

Section: Introductionmentioning

confidence: 99%

“…There is variability in digestibility of microalgae in fish. The digestibility of nutrients from microalgae has been suggested to be influenced by their intrinsic cell wall structure (Scholz et al, ; Teuling et al, ), their nutritional composition (Becker, ) and the digestive physiology of fish species (Burr, Barrows, Gaylord, & Wolters, ; Teuling et al, ). Protein apparent digestibility coefficients (ADCs) of Arthrospira sp., Chlorella sp ., Nannochloropsis sp.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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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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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…and Scenedesmus sp . were reported to be 81%, 80%, 72% and 67%, respectively, in both Nile tilapia and African catfish (Teuling et al, ). The lower ADCs reported for Nannochloropsis sp .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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Effects of micro‐algae dietary oil replacement on growth, omega − 3 deposition and gut microbiome composition of Nile tilapia (Oreochromis niloticus)

Trevi,

Uren Webster,

Consuegra

et al. 2024

Aquaculture Fish & Fisheries

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Microalgae offer a sustainable source of omega − 3 fatty acids that can replace fish oil in aquafeeds, but the nutritional benefits are not always clear, particularly when microalgae are used as complete oil replacements in starter feeds. We compared the survival, growth, omega − 3 deposition and composition of the gut microbiota of juvenile mixed‐sex Nile tilapia (Oreochromis niloticus) that had been fed over a 3‐month period on six isonitrogenous, isolipidic and isocaloric aquafeeds that varied only on the contribution of fish oil, soya oil and microalgae (Schizochytrium) oil as lipid sources. Survival was not affected by diet, but fish fed a diet where the entire oil component (5%) was replaced by microalgae oil grew twice as fast as fish fed plant oil or a mixture of plant and fish oil. Dietary omega − 3 content was strongly correlated with omega − 3 deposition in the fish fillet. Complete replacement of fish oil by plant oil caused a significant decrease in the abundance of Peptostreptococcaceae and an increase in the abundance of Aeromonadaceae which is often associated with an inflammatory response in the fish gut. In contrast, when fish and soya oil in the reference diet were replaced by 100% microalgae oil, an increase in Mycobacteriaceae was observed. Our study indicates that Schizochytrium oil can be used to improve the growth of Nile tilapia and increase its omega − 3 content without any of the detrimental effects on the gut microbiome typically associated with some plant oil replacements.

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Microbial-Based Systems and Single-Cell Ingredients: Exploring Their Role in Sustainable Aquaculture Production

Akpoilih

2023

Sustainability Sciences in Asia and Africa

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Effect of cell wall characteristics on algae nutrient digestibility in Nile tilapia (Oreochromis niloticus) and African catfish (Clarus gariepinus)

Cited by 73 publications

References 39 publications

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

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

Effects of micro‐algae dietary oil replacement on growth, omega − 3 deposition and gut microbiome composition of Nile tilapia (Oreochromis niloticus)

Microbial-Based Systems and Single-Cell Ingredients: Exploring Their Role in Sustainable Aquaculture Production

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