During what stage of life is it critical for sheep to receive early vaccinations?

Early vaccinations are crucial for newborn lambs shortly after birth because this is a key period for establishing their immune system. Newborn lambs rely on passive immunity, which they receive from colostrum - the first milk produced by their mothers. This colostrum is rich in antibodies that help protect the lamb from various diseases during the vulnerable early stages of life.

Vaccinating shortly after birth ensures that the lambs start building their own immunity against specific diseases before they are exposed to pathogens in their environment. This timing is essential because lambs are particularly susceptible to infections and diseases during their first weeks of life. Early vaccination helps to prevent common illnesses that could hinder their growth and survival rates.

Timing for other stages of sheep life, like weaning or before breeding, is also important in the management of overall flock health but doesn't address the immediate needs of newborn lambs as critically as early vaccinations do.