Poultry is considered an important part of the biosystem. The demand for poultry meat in the world is increasing, and it is currently the second place among the meat products grown and consumed with 34 percent, and by 2030 it is expected to take the first place. The analysis of the state of poultry breeding in the world and in Uzbekistan was carried out. Currently, in Uzbekistan, great importance is attached to the development of poultry farming, and more chickens, quails, turkeys, geese and ducks are raised. If we take into account that these birds also eat blue grass and feeding them with blue grass is also beneficial for growth and development, it is reasonable to introduce chopped blue grass to the diet of the birds during the 1st phase: 18-45 weeks of age and the 2nd phase: 46-65 weeks of age. A device for crushing green grass has been developed. In this device, the crushed grass contains up to 5.9% of fractions larger than 20 mm, and when they are given to birds of the above age, they do not bend and come out, so it is necessary to separate them before feeding them to the birds.