Improved Kienyeji chicken, which are bred for higher egg production, usually start laying eggs at around 5 to 6 months of age. However, the exact age at which they start laying eggs may vary depending on various factors such as breed, nutrition, and management practices.

Proper nutrition is essential for the development of the reproductive system in chickens and for the production of high-quality eggs. Feeding the chickens a balanced diet that includes sufficient protein, vitamins, and minerals can help to ensure that they reach sexual maturity at the appropriate age and start laying eggs.

In addition to nutrition, providing proper management practices such as adequate housing, good ventilation, and proper lighting can also help to promote early onset of egg laying in improved Kienyeji chickens. It’s important to note that while most chickens will start laying eggs at around 5 to 6 months of age, some may take longer or start earlier depending on various factors.