Click to enlargeFirst Defense Bolus


Used as an aid in the reduction of morbidity and mortality of from scours caused by K99+ E. coli and coronavirus. Capsules packaged in individual, moisture resistant blister packs, 5 or 30 capsules per box.

A capsule dose of FIRST DEFENSE should be given with a balling gun to each calf within the first 12 hours after birth.


5 capsules F5-B1-A51-1$34.85
30 capsules F5-B1-A51-2$195.95

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