Boehringer Ingelheim Vetmedica, Inc.
Cattle Division
3239 Satellite Blvd NW,
Duluth, GA 64506
- Phone 866-638-2226
- Fax 816-326-9167
J-VAC® by Merial - Protects dairy cows from coliform mastitis
Product Description
J-VAC is a broad-spectrum bacterin-toxoid that aids in the prevention of mastitis caused by Escherichia coli and the effects of endotoxemia caused by E. coli and Salmonella Typhimurium.
It is approved for a whole herd protocol and can be used for lactating cows, heifers or dry cows.
Proven Efficacy for Cows and Heifers
In a field trial with more than 700 cows and heifers, two doses of J-VAC reduced the incidence of clinical coliform mastitis cases by 81 percent.*
Clinical Coliform Mastitis
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E. Coli Clinical Coliform Mastitis (subset of data for the E. coli pathogen)
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J-VAC is the only vaccine of its kind approved for usage in the whole herd.
| PROTOCOL | J-VAC FIRST DOSE | J-VAC BOOSTER |
| Whole Herd | Any stage of lactation | 2-4 weeks after first dose |
| Dry Cow | Dry-off | 1-3 weeks before calving |
| Heifer | 60 days before calving | 1-3 weeks before calving |
J-VAC has been shown to reduce the incidence of clinical coliform mastitis cases by  |
 J-VAC is easy to administer with a |
The unique TandemTM adjuvant in J-VAC keeps antigens in suspension, releasing them over time, and stimulating enhanced immunity.
Features & Benefits
- Protects cows and heifers against coliform mastitis.
- Contains TANDEM, a unique polymer-based adjuvant that keeps antigens in suspension, releases them over time, and stimulates enhanced immunity.
- Can be administered intramuscularly or subcutaneously.
- Zero milk withhold.
Dosage Information
- As an aid in the prevention of mastitis, inject 2 mL (one dose) intramuscularly or subcutaneously at seven months of gestation or at dry-off; revaccinate at one to three weeks before calving.
- As an aid in the prevention of the effects of endotoxemia, whole herd vaccination may be done at any time. Vaccinate with 2 mL (one dose) followed by a second 2 mL dose two to four weeks later.
- Annual revaccination required.
- Calves vaccinated under 6 months of age should be revaccinated after reaching 6 months of age.
*Data on file at Merial
Merial is now part of Boehringer lngelheim. Tandem is a trademark, and J-VAC is a registered trademark of Merial. @2018 Boehringer lngelheim Vetmedica, Inc. BOV-1864-BIO1118