Green tea

Other Names:

Cha Ye


  • Antibacterial
  • Digestive aid
  • Diuretic
  • Antiinflammatory
  • Antiinfluenza
  • Antispasmodic
  • Antiviral
  • Antiulcer
  • Antioxidant

Green Tea

Camellia sinensis

Green tea (Camellia sinensis) leaves have been cultivated for their use in making traditional tea in China and Japan for thousands of years. Green tea leaves are a rich source of antioxidants and flavonoids. One of it's active chemicals is EGCG (epigallocatechin-gallate) which is known for its ability to increase the number of regulatory T cells, useful in fighting off autoimmune diseases. Other notable healing substances include fluoride, catechins, and tannins.

Summary of Research Conducted on Green Tea and Poultry

FormSpeciesAmountTime periodResultsRef
PowderBroilers15 g/kg42 dayshave the potential to improve antioxidant status due to increased plasma uric acid and improved plasma lipid profile due to decreased LDLMH Alimohammadi Saraei ei al., 2016
ExtractBroilers0.1 to 0.2 g/kg42 daysIncreased body weight, feed efficiency and decreased caecal coliform bacteria countG Erener et al., 2011
ExtractLaying hens0.5 to 2%14 daysSignificantly reduced shedding of oocysts in feces of chickens infected with Eimeria maxima.Jang et al., 2007
PowderLaying hens0.30%42 daysimproved Haugh unit, albumen percentage was higher, but yolk percentage was lowerBiswas et al., 2001
ByproductLaying hens4 to 6%42 dayssignificantly increased egg production rateYang et al., 2003
PowderLaying hens2%42 daysreduce cholesterol content and thiobarbituric acid value (TBA) of the egg yolk; thus implying potential effects on egg quality parameters.D Uuganbayar et al., 2005
The Chemistry of Tea Infographic by
The Chemistry of Tea Infographic by
Anti-influenza properties
Green tea contains catechins, which are polyphenolic compounds that are known to exhibit strong anti-influenza activity. A study conducted on chickens by Lee HJ et al., 2012 showed that adding 10 g/kg of green tea to the diet of chickens showed significant antiviral protection against avian influenza.


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