FIRST DEFENSE BOLUS 5 Pack 

First Defense calf bolus from Immucell is used as an aid in the prevention of neonatal beef and dairy calf scours caused by K99+ E. coli and Coronavirus. 

 Delivers specific antibodies to the gut for immediate protection against disease and provides additional immunoglobulins to be absorbed into the bloodstream for extended protection.

 Administer 1 bolus within the first 12 hours after birth. Do not vaccinate calves with oral Coronavirus or Rotavirus products within 5 days of administering First Defense. No slaughter withdrawal. OMRI listed and approved for organic operations, check with with your certification agency. U.S. Lic. No. 327. For best administration results, use Medium Balling Gun

PLEASE NOTE : Due to manufacturing issues 2-3 weeks delivery time.