Cevac Mass L
ATC code
Species
Chickens (broilers and future layers)
Indications
For the active immunisation of broilers and future layers against infectious bronchitis (Massachusetts serotype), in order to reduce respiratory clinical signs, detrimental effect on the ciliary activity and presence of virus in the trachea.
Protection was demonstrated by challenge with the Massachusetts M41 strain.
Onset of immunity: 3 weeks following vaccination.
Duration of immunity: 9 weeks following vaccination.
Dose to be administered and administration route
For nebulisation use.
The vaccine should be administered from one day of age, one dose / chicken.
Reconstitute the vaccine in distilled water, or in cold, clear water, free from disinfectants. The quantity of water should be sufficient to allow a uniform distribution of the vaccine when spraying the chickens. The content of a 1000-dose vaccine vial is recommended to be dissolved in 200 ml water, whereas this ratio should be considered when dissolving other types of presentation.
The vaccine should be applied as coarse spray with a droplet size of 100-200 µm. It is preferable that the chickens are sitting together in dim light or closely confined during spraying. The ventilation should be switched off during and after vaccination in order to avoid turbulences. Vaccination should be performed during the coolest time of the day.
Adverse reactions
No significant clinical symptoms were detected after administration of the product. Mild tracheal rales commonly occurred in animals 4-6 days after vaccination, which resolved completely in a few days. In rare cases transient conjunctivitis can occur.
The frequency of adverse reactions is defined using the following convention:
- very common (more than 1 in 10 animals treated displaying adverse reaction(s))
- common (more than 1 but less than 10 animals in 100 animals treated)
- uncommon (more than 1 but less than 10 animals in 1,000 animals treated)
- rare (more than 1 but less than 10 animals in 10,000 animals treated)
- very rare (less than 1 animal in 10,000 animals treated, including isolated reports)
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| Art. Nr. | 15052/4088 |
| EAN | 3411112182428 |
