Chicken feed formulation is the process of creating a balanced diet for chickens to ensure optimal growth, health and egg production. The following are the key components of a well-formulated chicken feed:

1. Proteins: Essential for growth and maintenance, and the building of muscle and egg production. Sources of protein include soybean meal, fishmeal, and meat meal.
2. Carbohydrates: Provide energy to chickens and are found in grains such as corn, wheat, and barley.
3. Fats: A source of energy and essential fatty acids. Sources of fat include animal fat and vegetable oils.
4. Vitamins and Minerals: Essential for proper growth, health and egg production. Commonly included vitamins and minerals include Vitamin A, Vitamin D, calcium, and phosphorus.
5. Fiber: Helps maintain digestive health and can be found in sources such as soybean hulls and beet pulp.

When formulating chicken feed, it is important to consider the age and stage of production of the chickens, as well as their breed, as this can affect the specific nutritional requirements of the birds. Feed formulation can be done by a poultry nutritionist or using commercial feed formulation software. It is also important to regularly monitor the health and performance of your chickens, and to make adjustments to the feed formulation as necessary.