Vaccination and/or Medicated feed for Broody-hatched-and-raised Chicks?
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I don't do Marek's vaccinations on my home bred chicks, but do for hatchery chicks. So far there's no Marek's disease here, and my home breds are the 'canaries in the coal mine' who would get sick first. Amprolium medicated chick starter is good insurance against a bad coccidiosis outbreak, so it's never a bad idea. I feed everyone Flock Raiser, with oyster shell on the side for the layers, and haven't had issues. BUT someday I might not be so lucky! I have high dry sandy soil, which likely helps too. Mary