How long can soybean birds have sex with red hair?

How long does it take to have sex in 30 minutes? You can do it twice a week for 30 minutes each time. Mix 25% green feed with proper amount of fish, beef, chicken, eggs, cheese, etc. to make feed for soybean poultry, in which green feed can be cooked egg yolk, fruits, vegetables, coarse grains, peanuts, etc. When making feed, we should pay attention to the reasonable collocation of nutrients, reasonable complementary food and proper intake of vitamins and trace elements, which can make soybeans grow rapidly.