Kienyeji chicken, also known as indigenous chicken, usually takes around 5 to 6 months to reach maturity. However, the maturity period may vary depending on various factors such as breed, nutrition, and management practices.

Proper nutrition is essential for the growth and development of Kienyeji chickens. Feeding them a balanced diet that includes grains, vegetables, and protein-rich feeds such as insects, worms, or fish can help to speed up their growth and ensure that they reach maturity in the shortest time possible.

In addition to nutrition, proper management practices such as providing a clean and comfortable living environment, good ventilation, and regular health checks can also contribute to the quick growth and maturity of Kienyeji chickens.