Laboratorios Ovejero has a complete catalog of biological products to respond to the needs of veterinarians and farmers in the field of active and passive immunization of animals under their control.

These products are integrated by vaccines, auto vaccines, serums and other medicines whose main objective is the prevention of diseases in different animal species.

*If you are interested in purchasing this product, please, click here to see the List of Our Official Distributors


Attenuated live vaccine against Avian Infectious Bronchitis. Oral lyophilisate.


Attenuated virus strain Massachusetts H-120.

Target species and indications


Active immunization against Avian Infectious Bronchitis.

Primo-vaccination in chicks, emergency vaccinations in laying hens

Posology and method of administration

Route: drinking water.
Primary vaccination: from 1 to 10 days old.

Revaccination: 3 weeks after the primary vaccination and every 3-4 months.

Method of administration:

Deprive birds of drinking water for some hours (2 or 4 hours). Open the vial under the water, with the lyophilized vaccine and dissolve by stirring up with a clean object. The number of doses depends on the number of animals to be vaccine. Administer the vaccine at first hour in the morning, avoiding the contact of sunrays with the watering places. The vaccine will be diluted according to the age of the animals. The quantity of water that will be needed is:

  • 3-8 weeks old…………………….20-30 ml/bird
  • Older hens………………………….40 ml/bird

The use of liquid skimmed milk together with clean water is recommended to prolong the stability of the vaccine.

Presentation and withdrawal period

10 vials with 1.000 doses.

0 days.

Lastest posts



We want to help you