Effect of soybean and seaweed-based diets on growth performance, feed utilization, and gut microbiota of tilapia: a systematic review and meta-analysis

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dc.contributor.authorViagem, Leonildo dos Anjo
dc.contributor.authorHakizimana, Jean Nepomuscene
dc.contributor.authorRumisha, Cyrus
dc.contributor.authorCerozi, Brunno da Silva
dc.contributor.authorMisinzo, Gerald
dc.date.accessioned2026-07-24T07:49:53Z
dc.date.available2026-07-24T07:49:53Z
dc.date.issued2024-07-24
dc.descriptionResearch article
dc.description.abstractTilapia, a significant aquaculture species globally, relies heavily on feed for its production. While numerous studies have investigated the impact of soybean and seaweed-based diets on tilapia, a comprehensive understanding remains elusive. This review aimed at evaluating and synthesizing the existing literature on these diets’ effects, focusing on growth perfor- mance, feed utilization, and gut microbiota. A systematic search of databases was con- ducted using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and a total of 57 studies were included in the qualitative analysis and 24 in the meta-analysis. The results indicated that soybean-based diets, at a 59.4% inclu- sion level improved the Specific Growth Rate (SGR) of tilapia with an effect size of -2.14 (95% CI: -2.92, -1.37; p < 0.00001; I 2 = 99%) and did not improve the feed conversion rate (FCR), as the effect size was 1.80 (95% CI: 0.72, 2.89; p = 0.001; I 2 = 100%). For seaweed- based diets, at a 15,9% inclusion level did not improve SGR, with an effect size of -0.74 (95% CI: -1.70, 0.22; p = 0.13; I 2 = 99%), and the FCR with an effect size of -0.70 (95% CI: -1.94, 0.54; p = 0.27; I 2 = 100%). Regarding the gut microbiota, was noted a lack of studies meeting the inclusion criteria for tilapia. However, findings from studies on other farmed fishes suggested that soybean and seaweed-based diets could have diverse effects on gut microbiota composition and promote the growth of beneficial microbiota. This study sug- gests that incorporating soybean-based diets at 59.4% inclusion can improve the SGR of tilapia. Seaweed-based diets, while not demonstrating improvement in the analyzed param- eters with an inclusion level of 15.9%, have the potential to contribute to the sustainability of the aquaculture industry when incorporated at lower levels.
dc.description.sponsorshipPartnership for Skills in Applied Sciences, Engineering, and Technology (PASET) through the Regional Scholarship and Innovation Fund (RSIF)
dc.identifier.citationhttps://doi.org/10.1371/journal. pone.0293775
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/20.500.14820/7837
dc.language.isoen
dc.publisherPLOS ONE
dc.subjectSoybeans
dc.subjectSeaweed
dc.subjectDiet
dc.subjectGut bacteria
dc.subjectMetaanalysis
dc.subjectDatabase searching
dc.subjectAnimal performance
dc.subjectSystematic reviews
dc.titleEffect of soybean and seaweed-based diets on growth performance, feed utilization, and gut microbiota of tilapia: a systematic review and meta-analysis
dc.typeArticle

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