Intramammary antibiotic per vet. Higher single-course cure rate for an established infection — but under NOP rules Poppy can never return to organic production. She would move to the conventional string or be sold.
Organic premium lost
−$3,240
$7.07/day × ~458 productive days at 62 lbs/day
Success odds
~85–90%
LEDGER note: under NOP §205.238, a producer may not withhold medical treatment from a sick animal to preserve its organic status. If organic-approved interventions fail, treat — and record the transition. The economics above exist so you decide early, not so you decide never.