In the Brooder
- Jun 3, 2016
We are hatching our own eggs in the incubator for the first time. The question is do our chicks need the marek's vaccine if both their parents were vaccinated against Marek's??
X2.They would not carry any immunity from their parents. If you want them vaccinated against Mareks you will have to vaccinate each chick.
However, most chicken vaccines are not like most dog or human vaccines. Mareks in particular is a vaccine that has a strange result. The vaccinated chickens are not immune to Mareks, but instead carry and shed the disease without having symptoms, but are still Mareks positive. Also the vaccine is nowhere near 100% effective, so if your chickens come in contact with Mareks they will carry it and transmit it to other chickens and you will have some losses (and Mareks in your flock) regardless of the vaccinations. You can find out more about Mareks from this guide;