First Defense

Immucell First Defense Bolus for calves is made from 100% dried colostrum antibodies. First Defense provides immediate immunity and consistent antibody levels to protect newborn calves against E. coli and coronavirus. The maternal immunoglobulins and standardized levels of E. coli and coronavirus antibodies bind and neutralize pathogens, minimizing death loss from these 2 major causes of scours. Ingredients meet NOP/USDA standards for use on organic farms. No colostrum withholding time—administer as soon as possible after birth along with maternal colostrum. Give bolus orally or mix the highly concentrated powder directly into colostrum or colostrum replacer.

The only USDA approved product proven to aid in the prevention of calf scours caused by K99 piliated Escherichia coli and coronavirus.

OMRI Listed First Defense Bolus 5 and 30 count.

Labeled for: Newborn beef and dairy calves