First things first, why do we vaccinate chickens?
Vaccination protects birds from deadly and contagious diseases that spread fast in flocks. It helps reduce mortality, maintain growth, and protect your investment.

Why vaccination is done.
-To prevent disease outbreaks.
-To lower death rates.
-To improve immunity and flock performance.
-To avoid economic losses.

Do local (Kienyeji) chickens need vaccination?
Yes, but not as many vaccines as hybrids. Local breeds are more hardy and tolerant to common poultry diseases due to their stronger natural immunity. They can survive in free-range conditions where exotic breeds would easily die. However, some diseases such as Newcastle affect all breeds, including Kienyeji, so vaccination is still important.

This is the Routine vaccination schedule for chickens.
1.Day 1 Marek’s disease vaccine (mostly for hatchery chicks, protects against paralysis and tumors).
2.Day 7–10 Newcastle disease vaccine (Lasota or Hitchner B1, protects against deadly Newcastle virus).
3.Day 14 Gumboro (Infectious Bursal Disease) vaccine, protects young birds from a disease that weakens their immune system.
4.Day 21-Repeat Newcastle (Lasota).
5.Week 6–8 – Fowl Typhoid vaccine (prevents bacterial infection).
6.Week 10–12 -Fowl Pox vaccine (prevents pox lesions on combs and wattles).
7.Every 3 months -Repeat Newcastle (Lasota) for continued protection.

My farm experience with Kienyeji breeds:
This is my second year farming local chickens. From my experience and discussions with other farmers and vets, I have found that some vaccines are unnecessary for Kienyeji chickens.

For example, Marek’s vaccine on day old Kienyeji chicks is a waste of money. These birds are more tolerant and hardy compared to hybrids. They have stronger natural resistance to many viral and bacterial infections. This is from my farm experience, not a scientific study.

The only vaccine I consistently use is the Newcastle vaccine.
Reason: Newcastle is a highly contagious viral disease that kills both local and hybrid chickens fast. Once it enters your flock, treatment is impossible. Vaccination is the only effective protection.

Gumboro vaccine is optional for My Kienyeji chickens. I skipped it this year.

Reason. Gumboro mainly affects fast-growing hybrids in intensive systems. Local chickens raised on free-range systems have lower risk. Still, if your flock is large or confined, consider including it in your program.

Please Note.
-Kienyeji chickens have stronger natural immunity.
-Focus on Newcastle vaccination as a must.
-Gumboro is optional depending on your system.
-Marek’s and other vaccines add little value to Kienyeji flocks in free-range systems.

This is based on farm experience, not laboratory research. Farmers should always observe their flock, record outcomes, and adjust vaccination plans to their environment.