ArticleVeterinary world2021
Effect of dietary tannins on the performance, lymphoid organ weight, and amino acid ileal digestibility of broiler chickens: A meta-analysis.
Article in Veterinary world, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 35 citations in OpenAlex.
- Application of a Tannin Nano-Absorber: effect on performance, blood parameters, meat quality and nutrient digestibility in broiler chickens fed diets containing sorghum grain.Tropical animal health and production · 2025Article
- Evaluating dried pomegranate peel as a functional feed additive: effects on growth, carcass traits, and gut health in broilers.Tropical animal health and production · 2025Article
- Evaluation of The Phytochemical Composition and Antimicrobial Properties ofArchives of Razi Institute · 2025Article
- Effect of Tannic Acid on Antioxidant Function, Immunity, and Intestinal Barrier of Broilers Co-Infected with Coccidia andAnimals : an open access journal from MDPI · 2024Article
- Optimization of solvent and extraction time on secondary metabolite content of mangosteen leaf (Journal of advanced veterinary and animal research · 2024Article
- Feeding Value of Lupins, Field Peas, Faba Beans and Chickpeas for Poultry: An Overview.Animals : an open access journal from MDPI · 2024Review
- Effect of a microencapsulated phyto/phycogenic blend supplementation on growth performance, processing parameters, meat quality, and sensory profile in male broilers.Frontiers in veterinary science · 2024Article
- Pumpkin seeds, lemongrass essential oil and ripleaf leaves as feed additives for Ascaridia galli infected laying hens.Veterinary research communications · 2023Article
- Dietary Phytogenic Extracts Favorably Influence Productivity, Egg Quality, Blood Constituents, Antioxidant and Immunological Parameters of Laying Hens: A Meta-Analysis.Animals : an open access journal from MDPI · 2022Review
- Effect of vitamin E supplementation on chicken sperm quality: A meta-analysis.Veterinary world · 2022Article
Corrections and comments
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Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimTannins are functional secondary metabolites that may provide benefits to ruminants. However, to date, their effects on broiler chickens remain inconclusive. This study aimed to evaluate the effectiveness of dietary tannin levels on the performance, body organs, and amino acid (AA) digestibility of broiler chickens using a meta-analysis. MATERIALS AND
methodsAfter verification and evaluation, a total of 22 articles were included in the present study. All data regarding dietary tannin dosages, performance, digestibility, and gastrointestinal physiology of broiler chickens were tabulated into a database. The database data were then statistically analyzed using mixed models, with tannin dose as a fixed effect and study as a random effect.
resultsHigh levels of dietary tannins negatively affected the average daily gain and average daily feed intake of broiler chickens according to linear patterns (p<0.001). In addition, dietary tannins decreased drumstick and liver weights, as well as bursa of Fabricius and spleen weight (p<0.05). Meanwhile, other carcass traits (i.e., thigh, wings, and body fat) were not influenced by dietary tannins. Regarding AA digestibility, high dietary tannin concentrations induced negative responses on isoleucine, leucine, and methionine digestibility (p<0.05).
conclusionDietary tannins appear to have a negative effect on broiler performance, lymphoid organ weight, and AA ileal digestibility. Hence, the addition of tannins to broiler diets is not recommended.
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