The First Defense® products for preventing scours help get your calves off to a healthy start.

First Defense® Tri-Shield™ is a single dose (gel tube) preventive treatment with trivalent protection against three of the leading pathogens that lead to calf scouring. Preventing scours in newborn calves reduces the need to use treatment antibiotics later in life and helps to prevent other diseases later in life.

The direct, two-part mode-of-action of First Defense® delivers specific immunoglobulins at the gut level to immediately protect against disease, while also providing additional antibodies that are absorbed into the bloodstream. These circulating antibodies function like a natural timed-release mechanism, as they are re- secreted into the gut later to provide extended protection. A single dose of First Defense® products provide a guaranteed level of protection proven to reduce mortality and morbidity from two major causes of calf scours.

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