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Ery Vac 500

This page contains information on Ery Vac 500 for veterinary use.
The information provided typically includes the following:
  • Ery Vac 500 Indications
  • Warnings and cautions for Ery Vac 500
  • Direction and dosage information for Ery Vac 500

Ery Vac 500

This treatment applies to the following species:
Company: Arko



Avirulent Live Culture

Ery Vac 500 Indications

This product has been shown to be effective for the vaccination of healthy swine 8 weeks of age or older against E. rhusiopathiae. The minimum duration of immunity for this product has not been determined. For more information regarding efficacy and safety data see

Contact a veterinarian for more information on vaccination frequency. Do not use in pregnant swine.

Administration And Dosage

For 500 dose vials: Add 20 mls of non-chlorinated water, shake well. Combine with 480 mls of non-chlorinated water and promptly administer 1 ml orally per pig. The vaccine is recommended for oral vaccination of healthy pigs at 8 weeks of age or older.


1. Medications and disinfecting products in the drinking water are not compatible with ERY VAC. Discontinue their use at least 3 days before vaccinating and do not resume their use for 3 days following vaccination.

2. Use clean, cool, nonchlorinated water in accordance with the mixing information. Skim milk or an oral vaccine stabilizer should be used in the water line to remove traces of antibacterial agents. Mix 480 grams (2 cups) of powdered skim milk per 3.8 liters (1 gallon) of stock solution to be delivered via a 1:128 water proportioner. Commercial stabilizers should be used according to the directions.

3. Rehydrate the vaccine just prior to administration. Remove the aluminum seal and the stopper. Rehydrate the vaccine with water. After reconstitution reseat the stopper and shake to thoroughly dissolve the vaccine.

4. Dosage is based on the number of pigs. Use at least one dose of vaccine per pig being vaccinated. Add the vaccine to the calculated amount of drinking water and administer immediately. Generally water may be withheld a short time prior to vaccinating to encourage the pigs to drink. Emptying the water lines prior to vaccination also assures of providing a full dose of vaccine to the waterers on the end of the water line. The vaccine should be administered orally in an amount of drinking water that would be consumed by thirsty pigs in approximately 6 - 8 hours. Make sure all the vaccine is consumed by the pigs. Provide ample water space so that all the pigs can drink easily.

5. Daily water consumption for each vaccination needs to be determined just prior to use. Water consumption is affected by weather management conditions and the age of the pigs. When specific water consumption information is not available, please refer to a reference table. The following table will serve as a guideline to determine the amount of water to be used with the vaccine if more specific information is not available.

Average Daily Water Consumption - Swine

Weight of Animal



18 kg or 40 lbs.



40 lb. Pigs

Vials of Vaccine

6 - 8 Hour Water Consumption



946.4 L or 250 gal.



1892.7 L or 500 gal.



2839.1 L or 750 gal.



3785.4 L or 1000 gal.



4731.76 L or 1250 gal.

Figures based on 1 ounce stock solution to 1 gallon of drinking water.


Store this vaccine at 2-8° C (35-46° F). Use the entire contents when first opened. Inactivate unused contents before disposal. Chlorine or other antimicrobial agents, if present in the vaccine water, may inactivate the vaccine. Use only proper hygiene when handling the vaccine. Clean any spills with disinfectants. Keep the vaccine away from open wounds. Wear gloves if necessary. In case of human exposure, contact a physician. Wash the hands thoroughly after using the vaccine. Do not mix with other products, except as specified on the label. Do not vaccinate within 21 days of slaughter.

ARKO LABORATORIES, LTD., Jewell, Iowa 50130

(515) 827-5159

VLN 337

PCN 1541.03

500 Doses

CPN: 1123003.2

P.O. BOX 400, 1336 MAIN STREET, JEWELL, IA, 50130
Telephone:   515-827-5648
Toll-Free:   800-714-2756
Fax:   515-827-5648
THIS SERVICE AND DATA ARE PROVIDED "AS IS". DVMetrics assumes no liability, and each user assumes full risk, responsibility, and liability, related to its use of the DVMetrics service and data. See the Terms of Use for further details.

Copyright © 2023 Animalytix LLC. Updated: 2023-11-27