vaccinate for newcastle-bronchitis

Discussion in 'Managing Your Flock' started by jk47, Aug 7, 2014.

  1. jk47

    jk47 Songster

    Apr 17, 2013
    I knew my textbook and the bottle says you can vaccinate the hens at various ages in addition to when there chicks so my question is those of you that do use it do you repeat of couple time or only do it once I wasn't sure were this fit because it is part of managing a flock

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