Get the Scours Protection Everyone Wants.

First Defense protects calves by giving them immediate immunity from the most common scours pathogens. This kind of protection is in high demand because there’s no reliance on dam- or calf-level vaccines to stimulate an antibody response. Are you tired of babysitting preventable problems? Give your calves our hyperimmunized colostral antibodies. Get the most powerful protection against E. coli, coronavirus and rotavirus.

First Defense Calf
First Defense Calf
First Defense Calf

Calf Scours Prevention Products

First Defense scours prevention products are easy to use. One dose at birth provides an instant dose of immunity.

Dual Protection Bolus/Gel

Antibody protection delivering immunity from E. coli and coronavirus in a bolus or gel tube

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Tri-Shield Gel Tube

The only veterinary biologic protecting equally against E. coli, coronavirus and rotavirus

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First Defense Technology

The science of First Defense in a bulk format for dairy producers

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Antibodies Without Vaccination

In human health, antibodies are used to manage a wide variety of diseases, even cancer. Read how delivering antibody protection without vaccination is changing the decades-old narrative on scours prevention.

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Our customers. Their stories.

Use our testimonial map to read what farmers and veterinarians across the country are saying about antibodies without vaccination.

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