The A to Z of vaccination from day to month-olds

Poultry farming in Diani, Kwale. [David Njaaga, Standard]

Dear Dr Messo, I bought chicks from a Mombasa outlet through my feed supplier on February 6 this year. My supplier advised that the chicks come vaccinated against Mareks, Gumboro and Newcastle disease and I only need to administer Newcastle at 2 weeks. Two weeks after purchase I administered the Newcastle vaccination. Now as a chicken farmer, I have always reared the local kienyeji chicken and this is my first time to stock improved kienyeji. As I chose improved Kienyeji, kindly guide me through the vaccination process. My chicks are now 17 days and I have only administered Newcastle vaccine. Selpha.