ArticleVeterinary medicine and science2022
The effects of green tea in the diet of broilers challenged with coccidiosis on their performance, carcass characteristics, intestinal mucosal morphology, blood constituents and ceca microflora.
Article in Veterinary medicine and science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 24 citations in OpenAlex.
- Medicinal Plants in Poultry During Post-Antibiotic Era in One-Health Approach: An Extensive Review.Veterinary medicine and science · 2026Review
- Effects of tea polyphenols on intestinal barrier, antioxidant capacity, and cecal microbiota in lion-head geese.Poultry science · 2026Article
- Green tea extract disrupts gonadal differentiation in a model avian system.Poultry science · 2026Article
- Comparative evaluation of a novel phytochemical mixture and monensin on host- and pathogen-targeted strategies in broiler chickens challenged with Eimeria maxima.Poultry science · 2026Article
- Dietary supplementation of coffee pulp extract enhances growth performance and intestinal morphology in broiler chicken.Poultry science · 2025Article
- Advanced chelate technology-based trace minerals reduce inflammation and oxidative stress in Eimeria-infected broilers by modulating NF-kB and Nrf2 pathways.Scientific reports · 2024Article
- Microbial-Metabolomic Exploration of Tea Polyphenols in the Regulation of Serum Indicators, Liver Metabolism, Rumen Microorganisms, and Metabolism in Hu Sheep.Animals : an open access journal from MDPI · 2024Article
- Mitigation Potential of Herbal Extracts and Constituent Bioactive Compounds onAnimals : an open access journal from MDPI · 2024Review
- Farm Animal Welfare-From the Farmers' Perspective.Animals : an open access journal from MDPI · 2024Article
- Effect of tea polyphenols on intestinal barrier and immune function in weaned lambs.Frontiers in veterinary science · 2024Article
- Effect of an Escherichia coli-derived phytase and a carbohydrase-protease cocktail derived from Bacillus spp. on performance, digestibility, bone mineralization and gut morphology in broilers fed different nutrient density diets.Veterinary medicine and science · 2024Article
- Effects of Ilicis Chinensis folium extract supplementation on growth performance, serum parameters, intestinal morphology, and antioxidant capacity of broiler chickens.BMC veterinary research · 2023Article
- Effect of chamomile (Matricaria chamomilla L.), linden (Tilia cordata Mill.), and green tea (Camellia sinensis L.) aqueous extract administration in the drinking water during pre-slaughter feed withdrawal period in broiler chickens.Tropical animal health and production · 2023Article
- L-Theanine and Immunity: A Review.Molecules (Basel, Switzerland) · 2023Review
- Effect of different levels of green tea (Camellia sinensis) and mulberry (Morus alba) leaves powder on performance, carcass characteristics, immune response and intestinal morphology of broiler chickens.Veterinary medicine and science · 2023Article
- The effects of green tea in the diet of broilers challenged with coccidiosis on their performance, carcass characteristics, intestinal mucosal morphology, blood constituents and ceca microflora.Veterinary medicine and science · 2022Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCoccidiosis is an endemic protozoal disease of chickens normally controlled by ionophores. However, coccidiostats are also antibiotics, and evidence of resistance in both coccidia and bacteria may develop and reduce antibacterial activity in humans. This has led to a search for natural coccidiostats, such as green tea.
objectivesTo study the effects of supplementing broilers with various levels and types of green tea, in comparison to use of a conventional coccidiostat or a control, unsupplemented diet.
methodsA total of 360 male, day-old Ross 308 broilers (days 1-42) were used to evaluate the gut morphology and performance when challenged with coccidiosis and fed varying dietary levels of green tea powder or extract. Treatments were Negative control (NC, unsupplemented control diet); positive control (PC, control diet + commercial coccidiostat); control diets with 0.2, 0.3 or 0.4 g/kg green tea extract (GTE 0.2, 0.3 and 0.4); and control diets with 1, 2 or 3 g/kg green tea powder (GTP 1, 2 and 3).
resultsCompared with NC, PC and all green tea treatments, but particularly GTE0.4, increased feed intake and growth rate, with the best feed conversion ratio at GTE0.4. As a proportion of carcase weight, higher inclusion rates increased intestine weight and decreased abdominal fat. The duodenum, jejunum and ileum of birds fed green tea, and particularly GTE0.4, had longer, wider villi, and shallower crypts. Epithelium thickness was reduced by green tea and PC, compared to NC. Clostridium perfringens and coliform populations decreased in proportion to green tea inclusion rate and decreased in PC. Lactobacilli increased with green tea and were more for NC than PC. Green tea at the highest concentrations reduced blood glucose and LDL and VLDL cholesterol.
conclusionsGreen tea offers a possible replacement for conventional ionophores to control coccidiosis in broiler chickens. The best inclusion rate was 0.4 g/kg.
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