As hens enter the plentiful period, they are prone to anemia and cause a reduction in egg production. According to the feeding test of layer chickens, chickens fed tea can increase by 5%-8% and egg production under the same feed formulation, feeding methods and procedures. The method is: use boiling water to make tea, and cover the tea lid and brew for half an hour, and then water the hen to drink, or stir in 3-5 grams of ground tea in 100 grams of feed, the same can increase the hen Egg production. Feeding tea in the winter or feeding tea in the feed can also play a role in cold resistance.